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Date
Re: Explanation about warning label on 180TR + 8558B units
Hi John, Thanks for the reply and explanation. Yes, I was aware of the capacitors (although I didn't know their name) and the neon tester (already own one) but unaware of the lurking dangers for
By Benoit Robert <robertb3@...> · #459 ·
Re: Explanation about warning label on 180TR + 8558B units
Hi, The problem arises because some, (most) instruments contain capacitors from both line and neutral to the chassis. These capacitors are generally refered to as "Y caps". If an instrument is
By eboytoronto · #458 ·
Explanation about warning label on 180TR + 8558B units
Hello to all, Got a newbie question about a label found on top of my analog CRT main frame (housing my 8558B Spectrum Analyzer). The label said that a grounded power source is required for
By Benoit Robert <robertb3@...> · #457 ·
Info on HP8754?
Loking for specs for the HP 8754. Anyone know of any electronic copies of the manual? (Sorry if a duplicate post....just joined this group)
By Darrell Gordon <darrell.gordon@...> · #456 ·
Re: HP Parts Cross-reference lists 1850-0098
Hi Jim, This is not a reply to your note on an HP cross-ref list. But, I saw your name, and that reminded me that I wanted to ask you something. Tek related. I got a Tek 317 about a week ago. And
By Chuck Miles <chuckandmary@...> · #455 ·
Re: HP Parts Cross-reference lists 1850-0098
Thank you so much Jim. I'll try to locate one of the equivalents. Cheers to a great group. Mitch wrote:
By aquaman8_2001 · #454 ·
Re: HP Parts Cross-reference lists 1850-0098
The 1850-0098 shows in Fedlog as: PNP Junction 70V 7A 90W Cross-Ref B1493 - Solitron Devices CQT794 - Silicon Transistor Corp KT1117 - Silicon Transistor Corp SP776 - Motorola Regards, Jim ---
By Jim Reese · #453 ·
5325B
G'day Group: I've just become the keeper of an HP 5325B counter (SN 944-01273) and am intrigued by the model number on the front. It says "H71 5325B ELECTRONIC COUNTER", with "HEWLETT .
By austipodean <davidwiseman@...> · #452 ·
As Seen on TV - Shocking Discovery Helps Everyone!
When I read this post I also signed up for the program and I am very happy to say that the savings have been overwhelming. I have not been to the supermarket once since joining without saving a
By aliceroyce2 <aliceroyce2@...> · #451 ·
Re: HP Parts Cross-reference lists
Very useful! Thank you so much!! BTW wondering if anyone knows an equivalent for HP transistor 1850- 0098? Its a germanium PNP but would like to find replacemnt. Tanks, Mitch <jbarnes@a...>
By aquaman8_2001 · #450 ·
8754 Manual?
Anyone know where I can find an electronic manual for the 8754? TIA...Darrell
By windsaloft2000 <darrell.gordon@...> · #449 ·
Re: Wanted: HP6290A Power Supply Manual
Hi Dave, I have seen this problem before. The problem can generally be solved by cleaning the rotary switch. I use a product called DeoxIT D5 from Caig
By eboytoronto · #448 ·
Wanted: HP6290A Power Supply Manual
I have an HP 6290A 0-40VDC, 3A power supply. For the most part, it seems fully functional. However, something is amiss in the metering circuitry. The front panel meter mainly pins high or low.
By Dave Haupt <emailw8nf@...> · #447 ·
Re: HP Parts Cross-reference lists
<jbarnes@a...> wrote: Hello John, thank you for all the work to scan those papers and put them together! Jorgen dj0ud
By Jorgen Lund-Nielsen · #446 ·
HP Parts Cross-reference lists
Hi group ! For the benefit of those who work on HP equipment I have made available some parts cross-reference lists at: http://home.cogeco.ca/~jbarnes20/hp_ref.htm These list cross hundreds of
By eboytoronto · #445 ·
Re: FREE - six and a half foot rack
Hi... Anyone take you up on this? I'm near Sacramento. Let me know and I can even meet you somewhere. Thanks! Dennis Dave Haupt wrote:
By Dennis L. Wade <dwade@...> · #444 ·
FREE - six and a half foot rack
Yep, you read that right, free. Standard OLD 19" rack. OLD rack with amateur upgrades, this OLD rack is one of the husky sort that OLD timers used to build big OLD amplifiers into. Like most OLD
By Dave Haupt <emailw8nf@...> · #443 ·
Wanted: Rear feet for HP 141T
I have an HP141T mainframe with but two of the rear feet. That's disappointing, as I do like to place the unit at my feet, face upward. If anybody has a parts unit (probably the same feet were on
By Dave Haupt <emailw8nf@...> · #442 ·
Downloadable manual for HP8600A Synchroniser wanted.
Subject says it all,can anyone help? Thanks,Brian Goldsmith.
By Brian Goldsmith <brian.goldsmith@...> · #441 ·
Re: 8565A Spectrum Analyzer Anomaly
That is farther than a YIG should ever drift by itself. I would put a DC current meter in series with the main tuning coil, select a 0 Hz sweep at the zero-frequency spike on the analyzerr (wherever
By John Miles <jmiles@...> · #440 ·