|
Tek 576
Someone posted this here long ago and I followed these instructions successfully on two 576 curve tracers. Worked well! http://www.jacmusic.com/Tube-testers/TEK-576/Tek-576-index.htm Tom Bowers yahoo.
Someone posted this here long ago and I followed these instructions successfully on two 576 curve tracers. Worked well! http://www.jacmusic.com/Tube-testers/TEK-576/Tek-576-index.htm Tom Bowers yahoo.
|
By
Tom Bowers
· #177356
·
|
|
Slightly OT: How can I dissolve Potting Compound?
Dennis, A chemist friend once told me to try Dichloromethane. I have successfully unpotted two assemblies using this. First, it is nasty stuff, I put the part and the Dichloromethane in a glass jar wi
Dennis, A chemist friend once told me to try Dichloromethane. I have successfully unpotted two assemblies using this. First, it is nasty stuff, I put the part and the Dichloromethane in a glass jar wi
|
By
Tom Bowers
· #175837
·
|
|
Yet another use for a curve tracer
Yet another use for a Curve Tracer; In the 1970s we were having a problem with a custom digital logic family and interconnect through long twisted pair wiring. A transmission line problem. The wiring
Yet another use for a Curve Tracer; In the 1970s we were having a problem with a custom digital logic family and interconnect through long twisted pair wiring. A transmission line problem. The wiring
|
By
Tom Bowers
· #174654
·
|
|
Tek TDS694C advice pls
Frank, Ray, I recently needed to measure some 600 MHz clock signals and the folks I was working with were not convinced that probe and scope bandwidth was so important, so I came up with this data. It
Frank, Ray, I recently needed to measure some 600 MHz clock signals and the folks I was working with were not convinced that probe and scope bandwidth was so important, so I came up with this data. It
|
By
Tom Bowers
· #171387
·
|
|
TDS 68x Fan replacement
Rogerio, I had the same issue on a TDS684B. I removed the fan, peeled off the label and popped off the rubber cap. Then the bearing was exposed and I added 2 or 3 drops of oil. Slide the impeller in a
Rogerio, I had the same issue on a TDS684B. I removed the fan, peeled off the label and popped off the rubber cap. Then the bearing was exposed and I added 2 or 3 drops of oil. Slide the impeller in a
|
By
Tom Bowers
· #170922
·
|
|
485 Cordwrap Feet
For what it's worth, I traveled all over the US with a 485 for nearly 10 years, back when you could put a scope in the overhead bin of an airplane. This scope had a probe bag so coiling the cord and s
For what it's worth, I traveled all over the US with a 485 for nearly 10 years, back when you could put a scope in the overhead bin of an airplane. This scope had a probe bag so coiling the cord and s
|
By
Tom Bowers
· #169678
·
|
|
Tek 576 Curve tracer XY out
From Dennis Tillman W7PF "Then it occurred to me that a 7603 with the right amplifiers might work just as well as a 600 monitor. " Wouldn't any dual channel plugin, like a 7A26 in both vertical and ho
From Dennis Tillman W7PF "Then it occurred to me that a 7603 with the right amplifiers might work just as well as a 600 monitor. " Wouldn't any dual channel plugin, like a 7A26 in both vertical and ho
|
By
Tom Bowers
· #168745
·
|
|
SN7400N Quad opamp which side is pin 1?
The notch is pin 1, lower left corner in your photo. the part number is near pin 7. This is a quad 2 input NAND gate device from the fist vintage of 7400 series TTL. Made in 1972. Tom Bowers
The notch is pin 1, lower left corner in your photo. the part number is near pin 7. This is a quad 2 input NAND gate device from the fist vintage of 7400 series TTL. Made in 1972. Tom Bowers
|
By
Tom Bowers
· #166264
·
|
|
Unsoldering delicate parts. WAS: Russian/Eastern Europe Tunnel Diodes
I have used ChipQuik successfully on some 64 pin chips, it works by melting a very low temperature alloy with the solder, making it possible to keep the 64 pins all liquid at once. I would think this
I have used ChipQuik successfully on some 64 pin chips, it works by melting a very low temperature alloy with the solder, making it possible to keep the 64 pins all liquid at once. I would think this
|
By
Tom Bowers
· #165811
·
|
|
CRT Filters Available
I have several CRT filters available for the cost of postage. I found these when searching for something else. Here's the quantity and descriptions. If you are interested, contact me off line at pvhen
I have several CRT filters available for the cost of postage. I found these when searching for something else. Here's the quantity and descriptions. If you are interested, contact me off line at pvhen
|
By
Tom Bowers
· #165789
·
|
|
Tek 576 Curve Tracer HV Replacement Transformer
Ernesto, I have un-potted the X14 multiplier from a 7904 and there is a 10 Meg Ohm 1/2 W Carbon resistor on the output high voltage lead, connected to the last diode in the ladder. The reason I had to
Ernesto, I have un-potted the X14 multiplier from a 7904 and there is a 10 Meg Ohm 1/2 W Carbon resistor on the output high voltage lead, connected to the last diode in the ladder. The reason I had to
|
By
Tom Bowers
· #165737
·
|
|
TEK 575 and 517 in Tucson
The only electronic component supplier I know of in Tucson, AZ is Elliott Electronic Supply. They recently opened a surplus store in the other half of their building and today was the first time I had
The only electronic component supplier I know of in Tucson, AZ is Elliott Electronic Supply. They recently opened a surplus store in the other half of their building and today was the first time I had
|
By
Tom Bowers
· #165240
·
|
|
TDS784C Programming Manual Needed
Steve, I have a TDS684x (can't remember if it is a B or C) and it has always been very finicky with floppy disks. I have learned to format a disk in the scope and if it passes, then it is usable to ex
Steve, I have a TDS684x (can't remember if it is a B or C) and it has always been very finicky with floppy disks. I have learned to format a disk in the scope and if it passes, then it is usable to ex
|
By
Tom Bowers
· #164024
·
|
|
Tek 604: Sad story, and CRT wanted
Hi Toby, I am curious about your TEK 604 application. Here's a little background about mine. Nearly 50 years ago I was part of a group of a few hundred people. We were developing hardware and software
Hi Toby, I am curious about your TEK 604 application. Here's a little background about mine. Nearly 50 years ago I was part of a group of a few hundred people. We were developing hardware and software
|
By
Tom Bowers
· #163448
·
|
|
Tek 604: Sad story, and CRT wanted
Hello Toby, I have a new CRT for a 604, still in the original box, never used, it was purchased as a spare that we never installed. How do I contact you off list and where are you located. The CRT is
Hello Toby, I have a new CRT for a 604, still in the original box, never used, it was purchased as a spare that we never installed. How do I contact you off list and where are you located. The CRT is
|
By
Tom Bowers
· #163378
·
|
|
tek 7xx4 series brightness dimming after power on
Hello, I have a 7904A and it works exactly as you describe. I consider that normal, nothing to worry about. Just a minor annoyance. Tom Bowers
Hello, I have a 7904A and it works exactly as you describe. I consider that normal, nothing to worry about. Just a minor annoyance. Tom Bowers
|
By
Tom Bowers
· #162822
·
|
|
7904 HV Multiplier Potting
Thanks Chuck, I was considering wax. The stuff I have available right now was intended for food canning. I'm not sure if that is appropriate. Also, I found this suggestion on another web site; "Dissol
Thanks Chuck, I was considering wax. The stuff I have available right now was intended for food canning. I'm not sure if that is appropriate. Also, I found this suggestion on another web site; "Dissol
|
By
Tom Bowers
· #162495
·
|
|
7904 HV Multiplier Potting
I need to fabricate a replacement HV Multiplier for a 7904. I have a schematic, PCB, and parts. The remaining question concerts appropriate potting compound. Does anyone have any suggestions? Thanks,
I need to fabricate a replacement HV Multiplier for a 7904. I have a schematic, PCB, and parts. The remaining question concerts appropriate potting compound. Does anyone have any suggestions? Thanks,
|
By
Tom Bowers
· #162490
·
|
|
tektronix 7S14 batteries and time base question
Sorry, LH1262 is correct. LCs were a different family Tom
Sorry, LH1262 is correct. LCs were a different family Tom
|
By
Tom Bowers
· #162417
·
|
|
tektronix 7S14 batteries and time base question
I haven't been following too closely, but just remembered some old Western Electric parts that Vishay still makes. These may be of value to consider for this mercury battery replacement. Take a look a
I haven't been following too closely, but just remembered some old Western Electric parts that Vishay still makes. These may be of value to consider for this mercury battery replacement. Take a look a
|
By
Tom Bowers
· #162410
·
|