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7904 power supply
I need a transformer or a working power supply for my 7904 scope.The serial # is above B260000. The transformer is T1310, part # 120-0742-00. The power supply assembly is # 620-0461-00 Paul
By ke4dnk@... · #197 ·
Re: Manual Sources
Thanks to everyone who replied, I've contact several and am looking for the best price Doug manual manual
By Doug <carroll@...> · #196 ·
Re: 454 with no vert. deflection
on this, ...................................................................... The trace starts on center of screen and runs to right side, Vertical seems to be ok. The output transistors voltages
By mtmpsmp@... · #195 ·
Re: 454 with no vert. deflection
Hi Mike, Good news! It is always great to hear of a success like yours. More comments below . . . mtmpsmp@... wrote: Well, there a
By Stan or Patricia Griffiths <w7ni@...> · #194 ·
Re: 454 with no vert. deflection
help. pins vertical
By mtmpsmp@... · #193 ·
Re: tek 475 vertical position pots - end of story!
Thanks Emanuele for your extensive coverage for cleaning the pots of an 475. I'm sure more people appreciate this nice stor, because it is one of the most common failure's in 465, and 475 scopes,
By pe1fbo@... · #192 ·
Re: Hi all
575 556? I would love to have a 556. They are both massive double beam machines but there are quite a few differences. The 556 is in one piece while the 555 is quite a bit larger and has a separate
By morriso2002@... · #191 ·
Re: Introduction and 465 Help Request
output amplifier. First thing to check is the collector load resistors that of gain Dean, thanks for your quick response. I m not sure which collector load re
By Bill Wollam · #190 ·
Re: Introduction and 465 Help Request
Bill, Don't play with the gain. Both channels are affected the same way, and that pretty much says that the problem is in the vertical output amplifier. First thing to check is the collector load
By dhuster@... · #189 ·
Introduction and 465 Help Request
Hello, I just discovered this group and look forward to participating. Right now I can use some technical help, though. I am wrestling with a TEK 465 in the 32xxx serial # range that seems to work
By Bill Wollam · #188 ·
Hi, I'm new!
Hello, I just found out about this group and decided to join. I've got an interesting collection of Tek scopes and other stuff, consisting of three RM561As, a 551, a 181A time mark generator, a 106
By George <mjman@...> · #187 ·
Re: Hi all
Do you know how the 555 differs from that other monster, the 556? Please tell us something about your spectrum analyzer! At least 2 of us here have 549/1A4 combos! Yes, a nice piece of
By Michael Dunn <mdunn@...> · #186 ·
Freon TF availability
When I recently joined this group, I read alot of the old posts. I saw in one the mention that Freon-TF, used to clean fans, wasn't available anymore. Where I work, they use something called
By james89es@... · #185 ·
Re: Hi all
Welcome aboard, Morris. I'm just a novice collector, and only have one scope (a late 535A, Scopemobile, and a few plugins). But, it's in almost mint condition and I have all the probes, cords, and
By europachris@... · #184 ·
Hi all
I'm very pleased to have found this group as I am a great lover and collector of vacuum tube Tek scopes here in Melbourne Australia. My collection includes examples of the 310A, 502, 524AD, 529,
By morriso2002@... · #183 ·
Re: Manual Sources
Don't forget to monitor eBay! ----------------------------------------------------------------- Michael Dunn | Surround Sound Decoder & Stereo Enhancer Cantares | Self-Amplified
By Michael Dunn <mdunn@...> · #182 ·
Re: Manual Sources
You may also want to look at www.big-list.com under "manual dealers". I have had good luck finding manuals from several entries in this list. Jim
By james89es@... · #181 ·
Re: Manual Sources
Hi Doug, I doubt you could get that manual from Tek at any price these days. Anyway, if you go to the following URL, you can find a list of companies and people who can supply you with copies of Tek
By Stan or Patricia Griffiths <w7ni@...> · #180 ·
Re: Manual Sources
Try this one. Bill http://used-line.com/cgi-bin/manuals/manuals.cfm Doug wrote: [E*TRADE. It's your money]
By Bill Gardner <gardnerwm@...> · #179 ·
Manual Sources
Hi, my name is Doug and I am looking for a User Manual and Service manual for a Tek 454 Scope. I had seen a source on the web but can't seem to find it now. Does anyone know were I might find
By Doug <carroll@...> · #178 ·