Hi Richard, Picked them up from the Calgary e-recycling depot. This is old Calgary (railroad and industrial) along Ogden Road SE. Heretically, I am an Edmontonian, but TEK ignores such petty boundarie

Just wanted to share with the group that I picked up a pair of RM547's for $cdn 33 + gasoline: About $cdn 88 ($usd 67) total cost. They are mechanically complete,have all their tubes and a patina of A

Hello, These units use a handful of reed relays for input range level switching (A14 board on my DA4084 units). I encountered one of these relays which was intermittent and it caused the auto range fu

I ran into the same issue. So I replaced the pull out cable with an insulated BNC female, chassis mount connector: https://www.vellemanusa.com/products/view/?id=351312 Shaun M.

Regarding film captures on older Tek scopes, there are film back options to use either 4x5 sheet film or 120 roll film. For the latter, I know that iso 3000 speed is available. Either format can be da

All, I have been following this thread with interest; thanks to Dennis for his investigation and sharing. If anyone needs a refresher on the basics of TDR, TEK has a relevant Application Note here: ht

Reading this thread with amusement and interest. I thought the Collins R390A was heavy until I piled up two DSA602A's one atop the other on my (sturdy) bench. I think the 556 weighs in at the top end

Matt, I obtained an NOS replacement CRT for a 556 from Surplus Sales of Nebraska a couple of years ago. May be worth looking into. http://www.surplussales.com/Tubes-Sock-Acc/CRTtubes.html Shaun M

Hi Dennis, I can confirm that Leo's pulser works fine from a typical USB power brick. It draws about 100mA at just over 5.0 volts. I have done this many times when I did not have a computer USB port i

By way of support and encouragement, these carts can be shipped flat. All it takes is 15 minutes with a couple of wrenches and drivers. Now the units with plug in compartment storage are somewhat bulk

John, Good information in this thread. Would you mind sharing your testing protocol when utilizing either NOS or used (old) HV electrolytic capacitors? I usually do the following to determine good can

I'll second Dave's suggestion. The EEVBlog forum is a tremendous resource for both model specific and more general information, links, contact, etc. Note that the forum is part of but separate from Da

Brian, I have had some successful repairs on almost identical fractures using J-B Weld Plastic Bonder, item 50133. Shaun Merrigan

Donation made. Thanks, Shaun Merrigan

Dennis, According to the list on the Wiki, 119- comprises "Assemblies". The most comprehensive list of Tek prefixes I have come across is here: http://w140.com/tekwiki/wiki/Tektronix_part_numbers (Tha

Gary, The ones I have seen were made by Amphenol, and this is borne out in some of the equipment parts lists referenced here: http://w140.com/tekwiki/wiki/BSM_connector Surplus Sales of Nebraska has t

Sebastian, Yes, I see the issue now. Your motor has cast endbells and press fit retainers. One issue I have found with press fit assemblies is even granting you can disassemble them without apparent d

Sebastian, As I recall, the tabs which hold the retainer to the endbell were relatively easy to bend starting with a small flat blade screwdriver followed by needle nose pliers. I bent them only far e

Sebastian, I disassembled and rebuilt (new bushings, check shaft diameter and wear, balance blade assy, etc) the fan motor in my Tek 556 which includes many images of the motor: http://shaunmerrigan.i