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Re: YIG Oscillator Info?
If you are new to YIG¡¯s then you should be very careful about the fine tune / FM coil as it does not take any currant to burn it out And yes you do need a lot of different power supplies to work on
By Paul Bicknell · #151950 ·
Re: YIG Oscillator Info?
Yes, thank you. Just found one of the YIGs is shown in one of the files, but the connections shown do not jive with the actual unit PCB. Considering requirements of 40V, 20V, 10V, 5V and one or two
By Steve J. Noll, WA6EJO · #151949 ·
Re: HP8757A Display Problem (Scalar Network Analyzer)
An update: I've extracted the 1345A display unit and examined the boards we spoke about yesterday; I powered it using a bench supply I designed and built myself years ago which I use for all this kind
By Trevor Gale · #151948 ·
Re: YIG Oscillator Info?
Have you looked in the ( The YIG ) folder on this sight ? Sent: 19 May 2025 18:11 To: [email protected] Subject: [HP-Agilent-Keysight-equipment] YIG Oscillator Info? I have these
By Paul Bicknell · #151947 ·
Re: E4407B schematics
also search this group's archive, this exact question has come up multiple times even just these past few months.
By fenugrec · #151946 ·
YIG Oscillator Info?
I have these three HP YIGs to check out. I find zero info on them online. I found the "Operating and Service Manual" for a network analyzer one of them came from... no schematics! (How can a "Service"
By Steve J. Noll, WA6EJO · #151945 ·
Re: how to convert HP83711B to 83712B!
Indeed, there are such SCPI strings but I couldn't get them working properly as the arguments for those commands are unclear. I did write a software which allows to modify a given EEPROM binary which
By tom_iphi · #151944 ·
Re: how to convert HP83711B to 83712B!
Yes it does, and I did re-calibrate them as described by Staffan's document. Tom
By tom_iphi · #151943 ·
Re: how to convert HP83711B to 83712B!
Nice work! The 83712Bs are less common and more expensive, so that¡¯s a very worthwhile upgrade. I can see how the empty space reserved for the low-band board was an irresistible temptation. And
By John Miles · #151942 ·
Re: 5334A part reference
I do have a DIY replacement oscillator for the 5334A and 5334B. If interested contact me off group. ed
By Ed (scskits) · #151941 ·
Re: how to convert HP83711B to 83712B!
I wonder if a dump of the EPROMs would show any interesting SCPI strings that might involve writing to the EEPROM so the coefficients could be written without disassembly while also calculating the
By Ed Marciniak · #151940 ·
Re: HP 10525H Logic Probe
Hi , the hp10525H looks different of the T version , different pcb and some components . Regards Maurizio
By Maurizio IZ1MDJ · #151939 ·
File /All HP, Agilent and Keysight instruments in folders by part numbers/5000 to 5999/HP 5334A Universal Counter/HP_5334A_ROM_05334-80011.zip uploaded #file-notice
The following items have been added to the Files area of the [email protected] group. * /All HP, Agilent and Keysight instruments in folders by part numbers/5000 to 5999/HP 5334A
By Group Notification <noreply@...> · #151938 ·
Re: 5334A part reference
The ROM dump of the HP 5334A has been uploaded:
By BI4LBK · #151937 ·
Re: HP 10525H Logic Probe
I was just about to post my copy of the same manual, but paused: I the HP 10525 *T* the same as the HP 10525 *H* requested by the OP? ~~ Mark
By Mark Moulding · #151936 ·
Re: Sphere Inc's HP (and Tektronix) Parts Inventory - tekandhpparts.com
Tom, It's a monumental task, I know. I've been contemplating building a website for something similar to this, and my cogs have come to a grinding halt several times. I command your efforts with this!
By Radu Bogdan Dicher · #151935 ·
Re: Sphere Inc's HP (and Tektronix) Parts Inventory - tekandhpparts.com
Excellent. Thanks for doing this. I wanted to get up to Kelowna for many years - I almost made it during a business trip to Vancouver. The store of parts and slide rules at Sphere have saved my butt
By Dave Daniel · #151934 ·
Re: Sphere Inc's HP (and Tektronix) Parts Inventory - tekandhpparts.com
Hi Dave, Post on TekScopes2 going up now.? Thanks for the reminder. Regards, Tom
By Tom · #151933 ·
Re: Sphere Inc's HP (and Tektronix) Parts Inventory - tekandhpparts.com
Thank you for the suggestion Radu.? We agree completely and it is on the "to do" list once we get reasonably close to completing a first pass inventory.? In the meantime, I'm happy to go snap a
By Tom · #151932 ·
Re: E4407B schematics
Hi David, Schematics are available (the CLIP from Artek under E4401B) but they only have ONE of the (at least) two versions of the RF Deck. The version in the CLIP is the same as that documented in
By Mark Bielman · #151931 ·