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Old Nixie counters
Hi group. I have a couple of old Nixie display counters. A 5214L, and a 5201L. It did take me a while to figure out the '14, but now understand what it does in all its modes. The '01 is
By Michael Dunn <mdunn@...> · #66 ·
Re: Need 3325A component ID
Hi there, Also in computer power supplies. The Bat signal. Regards Ray
By Ray Robinson <robinson@...> · #65 ·
Re: Need 3325A component ID
These TO220 packaged schottky diodes seem fairly common in switch mode power supplies used in photo copiers and such now. I don't think you should have much trouble finding a replacement. Perhaps you
By Don Black <jeans@...> · #64 ·
Re: Need 3325A component ID
Hello Tom, Motorola did a lot of Schottky and ultrafast recovery diodes in TO-220 packages. Those were diodes for currents higher than 5 A and to best of my knowledge, none of them were JEDEC
By Miroslav Pokorni · #63 ·
Need 3325A component ID
Hi, all. I need help identifying a part on the power supply board of an HP 3325A. It is CR10. But it resembles a TO-220 transistor. There are three separate part numbers on it: 1) 84-0266 (top of
By Thomas P. Gootee · #62 ·
FS manuals
Vintage manuals for sale: (originals except as noted) HP 522B counter $ 5.00 HP A4-C decade counter $ 5.00 HP 5352B freq,
By Joseph Orgnero <joseph@...> · #61 ·
HP 3460A Digital Voltmeter
Hello, I Am Looking For A PDF Of The Service Manual, This Unit Is Quite Old, But I Wanted A Challenge. Greyhawk
By greyhawkeng <greyhawkeng@...> · #60 ·
Re: HP 3469B multimeter
<higglyblue@y...> wrote: the relationship Hi, Yes there is a manual. My copy is bearely readable. Came from HP microfiche... Check the solid tantalum capacitors on the second board from the top,
By dyna_dan2 <ddufresne@...> · #59 ·
Re: Schematic for HP 4328A Milliohmmeter
<leedyt@a...> wrote: Hi Tom, Contact me by email below. I have a working 4328A and a manual. I can scan it for you. If it whent full scale it could be the batteries or the probe wires. Regards
By dyna_dan2 <ddufresne@...> · #58 ·
Program to control and print waveforms from HP54200A
I recently wrote a program to allow PCs to control and print waveforms from the HP54200A. The program also allows waveforms to be averaged to reduce noise and improve resolution, and it does FFTs.
By tbfowler100 <tfowler@...> · #57 ·
New file uploaded to hp_agilent_equipment
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the hp_agilent_equipment group. File : /HP54200A programs.zip Uploaded by
By hp_agilent_equipment@... · #56 ·
Re: FS: HP, Tek, and other test equip. manuals
Bob I'll take the Boonton 93AD and the Wavetek 157 quote me shipping USPS media mail/Book rate Dave
By NR1DX <nr1dx@...> · #55 ·
wanted: page from HP3320A/B manual
Hi, I need a copy of pages 7-3 and 7-4 from the HP3320A/B op/service manual. Page 7-3 is the block diagram, and I don't know what is on the back (maybe it's blank). A scan would be fine also, or if
By david@... · #54 ·
FS: HP, Tek, and other test equip. manuals
Test Equipment Manuals for Sale (within USA only). Prices do not include shipping and insurance from the Oswego, Illinois area. Money order or check. Fluke 8040A DMM maintenance (op/service)
By Bob Parnass, AJ9S <yahoo2@...> · #53 ·
Re: 456A current probe
can it Yes it did spin around.........at first try it would not budge......second try after posting the original query found that more might was needed in the effort and lo and behold it did move
By Daveolla · #52 ·
456A current probe
Was thinking of cutting the double banana plug off, and replacing it with Bnc (with the shunt capacitor also). Was also thinking of putting BNC on the amp for both probe and another for the output.
By Daveolla · #51 ·
Re: hp 83522a 2.4 ghz rf plug for 8350b
Thanks for the helpful suggestions, I will check the voltage potential on my DVM. Regards Richard Murray
By RICHARD W. MURRAY · #50 ·
Re: hp 83522a 2.4 ghz rf plug for 8350b
jm I checked the manual on my protek 506 dvm & it said that the test current for diode testing is 1 ma. The diode in question is acting as a switch which is controlled by a bias voltage based on
By RICHARD W. MURRAY · #48 ·
Re: hp 83522a 2.4 ghz rf plug for 8350b
Gleamfollower Any suggestions on how to test a schotsky diode. Thanks Richard
By RICHARD W. MURRAY · #44 ·
Re: hp 83522a 2.4 ghz rf plug for 8350b
I do not think that it is current that would kill schottky diode, it is reverse voltage that might do it in. Some of very old meters were putting 100 mA on low ohm range, but I do not think that there
By Miroslav Pokorni · #49 ·