Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Old March 23rd 14, 02:17 PM posted to sci.electronics.design,sci.electronics.repair,rec.radio.amateur.antenna,sci.electronics.equipment
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Default Wanted: Boonton 91-B Schematic

Hi guys,
I'm looking for the schematic of a Boonton 91-B RF Voltmeter.
I can find many other 91 series schematics but not the 91-B.
It would make my job easier with the correct schematic.
Any leads?
Thanks, Mikek

P.S. To Jeff, This is a tube model, I heeded your advice, I'm using an
isolation transformer.

problem; I have one calibration pot (1V range) that has very little
effect. The others have about a 30% range, this one maybe 1%.

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Old March 24th 14, 12:03 PM posted to sci.electronics.design,sci.electronics.repair,rec.radio.amateur.antenna,sci.electronics.equipment
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First recorded activity by DIYBanter: Jun 2009
Posts: 1,718
Default Wanted: Boonton 91-B Schematic


"amdx"

P.S. To Jeff, This is a tube model, I heeded your advice, I'm using an
isolation transformer.


** ROTFL !!

Wot simple faith in an idiot's advice.

No iso tranny is gonna save a fool like you from death by electrocution.





..... Phil


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Old March 24th 14, 01:16 PM posted to sci.electronics.design,sci.electronics.repair,rec.radio.amateur.antenna,sci.electronics.equipment
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First recorded activity by DIYBanter: Aug 2011
Posts: 43
Default Wanted: Boonton 91-B Schematic

On 3/23/2014 9:17 AM, amdx wrote:
Hi guys,
I'm looking for the schematic of a Boonton 91-B RF Voltmeter.
I can find many other 91 series schematics but not the 91-B.
It would make my job easier with the correct schematic.
Any leads?
Thanks, Mikek

P.S. To Jeff, This is a tube model, I heeded your advice, I'm using an
isolation transformer.

problem; I have one calibration pot (1V range) that has very little
effect. The others have about a 30% range, this one maybe 1%.


Hi, Mike -

Would a 91CA schematic help? If so, then...

http://bama.edebris.com/manuals/boonton/91ca/
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Old March 24th 14, 02:03 PM posted to sci.electronics.design,sci.electronics.repair,rec.radio.amateur.antenna,sci.electronics.equipment
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First recorded activity by DIYBanter: Jul 2013
Posts: 694
Default Wanted: Boonton 91-B Schematic

On 3/24/2014 8:16 AM, John S wrote:
On 3/23/2014 9:17 AM, amdx wrote:
Hi guys,
I'm looking for the schematic of a Boonton 91-B RF Voltmeter.
I can find many other 91 series schematics but not the 91-B.
It would make my job easier with the correct schematic.
Any leads?
Thanks, Mikek

P.S. To Jeff, This is a tube model, I heeded your advice, I'm using an
isolation transformer.

problem; I have one calibration pot (1V range) that has very little
effect. The others have about a 30% range, this one maybe 1%.


Hi, Mike -

Would a 91CA schematic help? If so, then...

http://bama.edebris.com/manuals/boonton/91ca/


Ya, I've checked that one, there seems to be to much difference
for me to trace it out.
Thanks, Mikek


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