Date   

Is anyone in the UK placing an order with Mouser soon

 

If so I'd like to piggy-back a small item to your order ...

Please contact me off-list to arrange.

Many thanks
Dave


Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

Dave Wise
 

Mouser has three packs of 100 pins each in stock, $12.45 a pack.

Dave Wise
________________________________________
From: TekScopes@yahoogroups.com <TekScopes@yahoogroups.com> on behalf of 'Dennis Tillman' dennis@ridesoft.com [TekScopes] <TekScopes@yahoogroups.com>
Sent: Monday, March 27, 2017 9:08 AM
To: TekScopes@yahoogroups.com
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

Hi Bruce,
Vector still makes pins of the right diameter and length (Vector part
number: K24C/C) that I could press into a PC Board and make a plug that way,
but nobody seems to have these pins in stock.
Dennis Tillman W7PF

-----Original Message-----
From: TekScopes@yahoogroups.com [mailto:TekScopes@yahoogroups.com]
Sent: Monday, March 27, 2017 8:38 AM
To: TekScopes@yahoogroups.com
Subject: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Vector used to sell little extruded round aluminum cans with 7-pin and 9-pin
tube pin bases. The bases attached with side screws. These were used for
constructing special plug-in modules. I don't know if they are still in the
Vector product line.

Bruce, KG6OJI
------------------------------------
Posted by: brucekareen@aol.com
------------------------------------




------------------------------------
Posted by: "Dennis Tillman" <dennis@ridesoft.com>
------------------------------------


------------------------------------

Yahoo Groups Links


Re: Tek Instruction Manual (aka "Bible")

Colin Herbert
 

I have just realised that Bill and Stan's Tektronix Resource Site at:



http://www.reprise.com/host/tektronix/home/default.asp



might be of use to you. The "Reference" page gives all sorts of comparisons
such as a CRT part number/Oscilloscope model database and transistor part
number/generic transistor number database.

You could do worse that downloading the Service Manuals for these two scopes
and check through the part-numbers yourself. It's a bit fiddly and, as David
says, check to make sure that the serial numbers on your scopes match up
with what the Service Manual covers. Since they are pretty much all free to
download, what do you have to lose?

Colin.

From: TekScopes@yahoogroups.com [mailto:TekScopes@yahoogroups.com]
Sent: 28 March 2017 15:12
To: TekScopes@yahoogroups.com
Subject: Re: [TekScopes] Tek Instruction Manual (aka "Bible")





Hey all, sorry to revive this thread, but quick follow up question
regarding similar models...

Are the 465 and 466 close enough in terms of parts that I might be able to
part a 465 (particularly the fan motor) to fix the 466? Or the other way
around?

The owner of the 465 says <https://nh.craigslist.org/ele/6062570749.html>
the following,

"and now it appears that the CRT isn't producing a trace. The illumination
function works on the display, but no trace."

Thanks!

DavidB







_____


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This email has been checked for viruses by AVG antivirus software.
www.avg.com <http://www.avg.com/internet-security>


Re: Tek Instruction Manual (aka "Bible")

Colin Herbert
 

Hi,

I have Service Manuals for 465, 465B and 466 scopes. The 465 and 466 would
appear to have pretty much the same fan motor and circuit. The circuit
number for the fan motor is B1690 in both cases, with Tek part number
147-0035-00. They are made by Siemens and the manufacturers number is
1AD3001-OA. This would suggest strongly that they can be swapped, but others
might know more certain from experience. However, the 465B is a rather
different thing; the fan motor isn't the same as the 465 and 466. I hope
this helps.

Colin.

PS. I think there may be an error on the fan motor circuit for the 466; it
shows a +5V on connector 9 of the motor, where the 465 circuit shows this as
+15V.



From: TekScopes@yahoogroups.com [mailto:TekScopes@yahoogroups.com]
Sent: 28 March 2017 15:12
To: TekScopes@yahoogroups.com
Subject: Re: [TekScopes] Tek Instruction Manual (aka "Bible")





Hey all, sorry to revive this thread, but quick follow up question
regarding similar models...

Are the 465 and 466 close enough in terms of parts that I might be able to
part a 465 (particularly the fan motor) to fix the 466? Or the other way
around?

The owner of the 465 says <https://nh.craigslist.org/ele/6062570749.html>
the following,

"and now it appears that the CRT isn't producing a trace. The illumination
function works on the display, but no trace."

Thanks!

DavidB







_____


<http://www.avg.com/internet-security> AVG logo

This email has been checked for viruses by AVG antivirus software.
www.avg.com <http://www.avg.com/internet-security>


Re: Tek Instruction Manual (aka "Bible")

 

You should check the parts lists just to be sure however the 464 and
466 are part of the 465 group.

One thing I have not been able to track down however is the variations
of the 465 if there were any. The 464 and 466 have an early and late
version with the early version using tunnel diode triggering and a
late version using integrated triggering. As far as I can tell
though, the 465 always used tunnel diode triggering but I have yet to
see the compete early 465 schematics.

My guess is that the 464 and 466 were updated around 1980 when the
465B was released to replace the 465 and this was when they replaced
tunnel diode triggering with integrated triggering:

1973 Early 465 Mixed Sweep Tunnel Diode Triggering
1974 Early 466 Mixed Sweep Tunnel Diode Triggering
1975 Early 464 Mixed Sweep Tunnel Diode Triggering

1980? Late 466 Mixed Sweep Integrated Triggering
1980? Late 464 Mixed Sweep Integrated Triggering
1980 465B Alternate Sweep Integrated Triggering

On Tue, 28 Mar 2017 07:11:33 -0700, you wrote:

Hey all, sorry to revive this thread, but quick follow up question
regarding similar models...

Are the 465 and 466 close enough in terms of parts that I might be able to
part a 465 (particularly the fan motor) to fix the 466? Or the other way
around?

The owner of the 465 says <https://nh.craigslist.org/ele/6062570749.html>
the following,

"and now it appears that the CRT isn't producing a trace. The illumination
function works on the display, but no trace."

Thanks!

DavidB


Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

Colin Herbert
 

Dennis,

On this page:



http://www.electrojumble.org/Valves_etc.htm



Item VH924 is an interesting item with a B7G plug and a Noval socket.
Reasonable price, too.

Colin.



From: TekScopes@yahoogroups.com [mailto:TekScopes@yahoogroups.com]
Sent: 28 March 2017 15:56
To: TekScopes@yahoogroups.com
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace





Hi Colin,
9-pin socket savers are available from every tube site I have checked. They
are even available direct from the manufacturers via Alibaba. The ones that
are impossible to find are the 7-pin. Those seem to be obsolete. No one is
making them. A few places have old stock at outrageous prices.
Dennis Tillman W7PF

-----Original Message-----
Sent: Tuesday, March 28, 2017 6:58 AM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Dennis,
Is this any good to you?
http://www.tubeampdoctor.com/en/shop_Tube_sockets_and_Accessories_9_PIN_tube
_socket/Novalplug_Noval_tube_base_adapter_2163
The price seems reasonable.

Colin.

Sent: 28 March 2017 06:25
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Hi Dave,
Thank you for your offer but for the moment I think I have a better
solution. The pins coming out of a tube base are about 1/4" (6.8mm). If I
try to push a longer pin into a tube socket it bottoms out at about 0.28"
(7.25mm). So I'm concerned that the 12mm pin length you have will cause
problems.

I have found a workable solution. Vector still makes pins that are the right
diameter and approximately the right length. They are meant to be pressed
into place in a PC Board through hole and then soldered to the pad
surrounding the hole. Since the vacuum tube curve tracer I was making will
ultimately be built on a printed circuit board I can work out a way to use
the Vector pins I found.

Dennis Tillman W7PF
------------------------------------
Posted by: "Colin Herbert" <colingherbert@blueyonder.co.uk>
------------------------------------





_____


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Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

n4buq
 

Given the image shows a part that's used, I assume RFE means"Removed From Equipment".

Thanks,
Barry - N4BUQ

----- Original Message -----
From: "Barry n4buq@knology.net [TekScopes]" <TekScopes@yahoogroups.com>
To: TekScopes@yahoogroups.com
Sent: Tuesday, March 28, 2017 10:18:21 AM
Subject: Re: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

Leeds lists them but not sure if they're stocked.

If you follow the "+" link beside this entry at
http://www.leedsradio.com/parts-sockets.html

7 pin minature plug - fits sockets for 1L6, 6AU6 etc
good for making tube adapters, test jigs (rfe)

It shows the following image:

http://www.leedsradio.com/images-sockets/plug-7pin.JPG

It doesn't show a price so I assume they're out of stock. Not sure what
"(rfe)" means but it shows by several items that do have prices so I don't
think its an indication of out of stock.

Thanks,
Barry - N4BUQ

----- Original Message -----
From: "'Dennis Tillman' dennis@ridesoft.com [TekScopes]"
<TekScopes@yahoogroups.com>
To: TekScopes@yahoogroups.com
Sent: Tuesday, March 28, 2017 9:55:48 AM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Hi Colin,
9-pin socket savers are available from every tube site I have checked. They
are even available direct from the manufacturers via Alibaba. The ones that
are impossible to find are the 7-pin. Those seem to be obsolete. No one is
making them. A few places have old stock at outrageous prices.
Dennis Tillman W7PF

-----Original Message-----
Sent: Tuesday, March 28, 2017 6:58 AM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Dennis,
Is this any good to you?
http://www.tubeampdoctor.com/en/shop_Tube_sockets_and_Accessories_9_PIN_tube
_socket/Novalplug_Noval_tube_base_adapter_2163
The price seems reasonable.

Colin.

Sent: 28 March 2017 06:25
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Hi Dave,
Thank you for your offer but for the moment I think I have a better
solution. The pins coming out of a tube base are about 1/4" (6.8mm). If I
try to push a longer pin into a tube socket it bottoms out at about 0.28"
(7.25mm). So I'm concerned that the 12mm pin length you have will cause
problems.

I have found a workable solution. Vector still makes pins that are the
right
diameter and approximately the right length. They are meant to be pressed
into place in a PC Board through hole and then soldered to the pad
surrounding the hole. Since the vacuum tube curve tracer I was making will
ultimately be built on a printed circuit board I can work out a way to use
the Vector pins I found.

Dennis Tillman W7PF
------------------------------------
Posted by: "Colin Herbert" <colingherbert@blueyonder.co.uk>
------------------------------------



400-series knob replacement or repair

Colin Herbert
 

Hi,
I've made this query wide-ranging, but it should become obvious why. I have a 468 DSO which I am trying to calibrate. It is a bit of a nuisance that the Volts/Div knob on Channel 2 has some markings which are obliterated. This 'scope has rather different markings from other Volts/Div knobs in the 400-series, so I can't use one from a parts mule 466 (or any other). My question, then, is does anyone have one of these knobs with its markings intact that they could sell me, or can anyone offer any advice as to how to restore the markings?
TIA, Colin.


Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

n4buq
 

Leeds lists them but not sure if they're stocked.

If you follow the "+" link beside this entry at http://www.leedsradio.com/parts-sockets.html

7 pin minature plug - fits sockets for 1L6, 6AU6 etc
good for making tube adapters, test jigs (rfe)

It shows the following image:

http://www.leedsradio.com/images-sockets/plug-7pin.JPG

It doesn't show a price so I assume they're out of stock. Not sure what "(rfe)" means but it shows by several items that do have prices so I don't think its an indication of out of stock.

Thanks,
Barry - N4BUQ

----- Original Message -----
From: "'Dennis Tillman' dennis@ridesoft.com [TekScopes]" <TekScopes@yahoogroups.com>
To: TekScopes@yahoogroups.com
Sent: Tuesday, March 28, 2017 9:55:48 AM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

Hi Colin,
9-pin socket savers are available from every tube site I have checked. They
are even available direct from the manufacturers via Alibaba. The ones that
are impossible to find are the 7-pin. Those seem to be obsolete. No one is
making them. A few places have old stock at outrageous prices.
Dennis Tillman W7PF

-----Original Message-----
Sent: Tuesday, March 28, 2017 6:58 AM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Dennis,
Is this any good to you?
http://www.tubeampdoctor.com/en/shop_Tube_sockets_and_Accessories_9_PIN_tube
_socket/Novalplug_Noval_tube_base_adapter_2163
The price seems reasonable.

Colin.

Sent: 28 March 2017 06:25
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Hi Dave,
Thank you for your offer but for the moment I think I have a better
solution. The pins coming out of a tube base are about 1/4" (6.8mm). If I
try to push a longer pin into a tube socket it bottoms out at about 0.28"
(7.25mm). So I'm concerned that the 12mm pin length you have will cause
problems.

I have found a workable solution. Vector still makes pins that are the right
diameter and approximately the right length. They are meant to be pressed
into place in a PC Board through hole and then soldered to the pad
surrounding the hole. Since the vacuum tube curve tracer I was making will
ultimately be built on a printed circuit board I can work out a way to use
the Vector pins I found.

Dennis Tillman W7PF
------------------------------------
Posted by: "Colin Herbert" <colingherbert@blueyonder.co.uk>
------------------------------------



Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

 

Hi Colin,
9-pin socket savers are available from every tube site I have checked. They
are even available direct from the manufacturers via Alibaba. The ones that
are impossible to find are the 7-pin. Those seem to be obsolete. No one is
making them. A few places have old stock at outrageous prices.
Dennis Tillman W7PF

-----Original Message-----
Sent: Tuesday, March 28, 2017 6:58 AM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Dennis,
Is this any good to you?
http://www.tubeampdoctor.com/en/shop_Tube_sockets_and_Accessories_9_PIN_tube
_socket/Novalplug_Noval_tube_base_adapter_2163
The price seems reasonable.

Colin.

Sent: 28 March 2017 06:25
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Hi Dave,
Thank you for your offer but for the moment I think I have a better
solution. The pins coming out of a tube base are about 1/4" (6.8mm). If I
try to push a longer pin into a tube socket it bottoms out at about 0.28"
(7.25mm). So I'm concerned that the 12mm pin length you have will cause
problems.

I have found a workable solution. Vector still makes pins that are the right
diameter and approximately the right length. They are meant to be pressed
into place in a PC Board through hole and then soldered to the pad
surrounding the hole. Since the vacuum tube curve tracer I was making will
ultimately be built on a printed circuit board I can work out a way to use
the Vector pins I found.

Dennis Tillman W7PF
------------------------------------
Posted by: "Colin Herbert" <colingherbert@blueyonder.co.uk>
------------------------------------


Re: Tek Instruction Manual (aka "Bible")

David Berlind
 

Hey all, sorry to revive this thread, but quick follow up question
regarding similar models...

Are the 465 and 466 close enough in terms of parts that I might be able to
part a 465 (particularly the fan motor) to fix the 466? Or the other way
around?

The owner of the 465 says <https://nh.craigslist.org/ele/6062570749.html>
the following,

"and now it appears that the CRT isn't producing a trace. The illumination
function works on the display, but no trace."

Thanks!

DavidB


Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

Colin Herbert
 

Dennis,

Is this any good to you?

http://www.tubeampdoctor.com/en/shop_Tube_sockets_and_Accessories_9_PIN_tube
_socket/Novalplug_Noval_tube_base_adapter_2163

The price seems reasonable.

Colin.



From: TekScopes@yahoogroups.com [mailto:TekScopes@yahoogroups.com]
Sent: 28 March 2017 06:25
To: TekScopes@yahoogroups.com
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace





Hi Dave,
Thank you for your offer but for the moment I think I have a better
solution. The pins coming out of a tube base are about 1/4" (6.8mm). If I
try to push a longer pin into a tube socket it bottoms out at about 0.28"
(7.25mm). So I'm concerned that the 12mm pin length you have will cause
problems.

I have found a workable solution. Vector still makes pins that are the right
diameter and approximately the right length. They are meant to be pressed
into place in a PC Board through hole and then soldered to the pad
surrounding the hole. Since the vacuum tube curve tracer I was making will
ultimately be built on a printed circuit board I can work out a way to use
the Vector pins I found.

Dennis Tillman W7PF


Re: tube sockets and plugs for the new tube curve tracer

David Holland
 

Yeah. I think they're likey "usable-old-stock". (Hence my not really a
source comment)

I dont think anyone is making anything new besides the 8 pin octal and 9
pin ones everyone has.


On Tue, Mar 28, 2017 at 12:12 AM 'Dennis Tillman' dennis@ridesoft.com
[TekScopes] <TekScopes@yahoogroups.com> wrote:

Hi David,
He has a 7-pin socket saver listed for $25. You are right about him not
being cheap.
Thanks for the link.
Dennis Tillman W7PF

-----Original Message-----
Sent: Monday, March 27, 2017 5:04 PM
Subject: Re: [TekScopes] tube sockets and plugs for the new tube curve
tracer

I wouldn't call it a proper "source", but the last 7-pin socket saver I
got was from Jim Cross @ http://vacuumtubesinc.com

I had to send him a note specifically for it, and he scrounged a
reasonable one up out of hits back room.

They've currently got a couple listed, but they aren't cheap.

His email is jim@vacuumtubesinc.com

(No affiliation, satisfied customer, yada-yada-yada)

David

------------------------------------
Posted by: David Holland <david.w.holland@gmail.com>
------------------------------------




------------------------------------
Posted by: "Dennis Tillman" <dennis@ridesoft.com>
------------------------------------


------------------------------------

Yahoo Groups Links




Re: Tek 464 - Advice on soldering shielding mesh to Vertical Output IC case

 

For jobs like this, I use my largest soldering iron tip for its high
heat capacity. Soldering then takes just a second or two; the large
surface area transfers a lot of heat rapidly and the large heat
capacity means the temperature drop is small so there is no need to
wait for reheating.

The rubber/emery abrasive wheel from a Dremel is perfect for cleaning
the surface before soldering if necessary without scratching the whole
top. I do not know if they are still available but the white erasers
used for ink (the ones that tear up the paper) work well also.

If soldering is still difficult, then a tiny bit of dilute HCl acid
will help a lot but I doubt this will be necessary. Kester actually
makes some acidic surface cleaners (Copper Nu 5520, Nickel Nu 5530)
which work great as fluxes but good luck finding them.

On 28 Mar 2017 06:42:34 +0000, you wrote:

Hi,

I don't think this should be of any problem. The die itself is attached to the bottom of the IC, not the to of the case where you'll solder it. If you are worried, put the IC on some cooling, such as a wet sponge.
To solder the case, first scrape or sand the top and using a lot of flux. Then melt some solder on the case and you can solder the braid. It may sound strange, but use high power (but temperature controlled) iron. This will let you solder it quickly without heating the whole IC.

Szabolcs


Re: Tek 464 - Advice on soldering shielding mesh to Vertical Output IC case

 

The driver hybrid on the 7000 series vertical output amplifiers have a
pressed connection to the top of the metal can package which goes to
ground. It is held in place with a plastic clip instead of being
soldered into place. I am inclined to think Tektronix added these
because they could not rely on the ground connection through the heat
sink interface.

As far as soldering, the top of the metal can package is relatively
far from the circuits mounted to the base of the package so soldering
is relatively easy and safe assuming that the solder wets the surface.


155-0241_01

Aung kyaw Moe <aakmoe@...>
 

Thank you all for advice on my 2456 u800.155-0241-01/-02/-00 are they all the same ?Or do I need faster chip for 2465/2465b?
Thanksmoe mm0mrmSent from Yahoo Mail on Android

[Non-text portions of this message have been removed]


Re: Tek 464 - Advice on soldering shielding mesh to Vertical Output IC case

Szabolcs Szigeti
 

Hi,

I don't think this should be of any problem. The die itself is attached to the bottom of the IC, not the to of the case where you'll solder it. If you are worried, put the IC on some cooling, such as a wet sponge.
To solder the case, first scrape or sand the top and using a lot of flux. Then melt some solder on the case and you can solder the braid. It may sound strange, but use high power (but temperature controlled) iron. This will let you solder it quickly without heating the whole IC.

Szabolcs


Re: A Vacuum Tube Curve Tracer for all Tek Semiconductor Curve Trace

 

Hi Dave,
Thank you for your offer but for the moment I think I have a better
solution. The pins coming out of a tube base are about 1/4" (6.8mm). If I
try to push a longer pin into a tube socket it bottoms out at about 0.28"
(7.25mm). So I'm concerned that the 12mm pin length you have will cause
problems.

I have found a workable solution. Vector still makes pins that are the right
diameter and approximately the right length. They are meant to be pressed
into place in a PC Board through hole and then soldered to the pad
surrounding the hole. Since the vacuum tube curve tracer I was making will
ultimately be built on a printed circuit board I can work out a way to use
the Vector pins I found.

Dennis Tillman W7PF

-----Original Message-----
Sent: Monday, March 27, 2017 3:14 PM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Dennis
I have several new 9 pin plug bases here which you are welcome to- these
are in essence a plastic base with the pins projecting from both sides of
the plastic and were originally used pcb mounted to make a test access
(multi) point in early Tait radios - the pins project equally each side of
the plastic base roughly 12 mm or so- I've not measured it. Can dig one out
and take a picture if you're interested.
DaveB,
Christchurch, NZ


-----Original Message-----
From: TekScopes@yahoogroups.com [mailto:TekScopes@yahoogroups.com]
Sent: Tuesday, March 28, 2017 4:16 AM
To: TekScopes@yahoogroups.com
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Hi Dave,
I need one or two.
I did find a source for 9-pin socket savers. Those can be opened up and the
plug part separated from the socket. They are less than $3 so I will buy
those. Same for 8-pin octal socket savers. So far I haven't found any 7-pin
socket savers still being sold. One was sold on Ebay the other day but my
$28 bid was not enough to win it.
Dennis Tillman W7PF

-----Original Message-----
Sent: Sunday, March 26, 2017 10:59 PM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Dennis
How many of the 7 and 9 pin plugs do you need? Are you looking for a
significant number?
73
Dave, ZL3FJ

-----Original Message-----
Sent: Monday, March 27, 2017 3:46 PM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Hi Bill,
In my case I needed tube PLUGS that would plug into a tube SOCKET. That is
my problem.

I am well aware of Tubesandmore. They certainly have a nice selection of 4
pin, 5 pin, 7 pin, 8 pin , and 9 pin tube SOCKETS. Unfortunately other than
8 pin tube PLUGS they, or anyone else for that matter, do not sell 7 pin
miniature tube PLUGS or 9 pin miniature PLUGS. Since 7 pin miniature tubes
and 9 pin miniature tubes have their pins coming right out of the glass
envelope this will make it very hard to get what I need by smashing spent
tubes to try and get an intact set of pins around the base of the tube.

As John Gord pointed out one way to find some of these is by searching for
socket savers. They, too, are scarce these days. Not many people are
designing things with tubes. There was a 9 pin and a 7 pin socket saver
auction on Ebay and I bid $28 for them but someone outbid me. I have no way
to know how high that person's ultimate bid might have been.

Dennis Tillman, W7PF

-----Original Message-----
Sent: Sunday, March 26, 2017 5:08 PM
Subject: Re: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Dennis and all,
Has everyone been overlooking the best source for tubes and related
hardware?

https://www.tubesandmore.com/products/tube_accessories
Bill
KB3DKS

-----Original Message-----
From: 'Dennis Tillman' dennis@ridesoft.com [TekScopes]
<TekScopes@yahoogroups.com>
Sent: Wed, Mar 22, 2017 10:06 am

Hi John,
Thanks for the suggestion. I know I kept coming across octal socket savers
all the time but I never saw a 7 pin or 9 pin socket saver. I will give that
a try.
Dennis Tillman W7PF

-----Original Message-----
Sent: Tuesday, March 21, 2017 5:06 PM
Subject: RE: [TekScopes] Re: A Vacuum Tube Curve Tracer for all Tek
Semiconductor Curve Trace

Try a Google search for "7 pin socket saver". I got some hits. 9 pin
socket savers seem to be more common. It looks like at least some of the
socket savers could be disassembled.
--John Gord
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Posted by: Doxemf <doxemf@aol.com>
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Posted by: "Dennis Tillman" <dennis@ridesoft.com>
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Yahoo Groups Links





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Posted by: "Dave Brown" <tractorb@ihug.co.nz>
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Yahoo Groups Links





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Posted by: "Dennis Tillman" <dennis@ridesoft.com>
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Yahoo Groups Links





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Posted by: "Dave Brown" <tractorb@ihug.co.nz>
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Yahoo Groups Links


Re: tube sockets and plugs for the new tube curve tracer

 

Hi David,
He has a 7-pin socket saver listed for $25. You are right about him not being cheap.
Thanks for the link.
Dennis Tillman W7PF

-----Original Message-----
Sent: Monday, March 27, 2017 5:04 PM
Subject: Re: [TekScopes] tube sockets and plugs for the new tube curve tracer

I wouldn't call it a proper "source", but the last 7-pin socket saver I got was from Jim Cross @ http://vacuumtubesinc.com

I had to send him a note specifically for it, and he scrounged a reasonable one up out of hits back room.

They've currently got a couple listed, but they aren't cheap.

His email is jim@vacuumtubesinc.com

(No affiliation, satisfied customer, yada-yada-yada)

David

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Posted by: David Holland <david.w.holland@gmail.com>
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Re: Tek 464 - Advice on soldering shielding mesh to Vertical Output IC case

Vladimir _
 

Hi Fabio,

I have two 466s, an early and a late model, and both have the grounding strap soldered to the output amp if I remember correctly. However, I doubt it really matters as the hybrid has a low-impedance path to ground through the bolt on the bottom anyway. I personally wouldn't risk damaging the replacement unless absolutely necessary.

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