Wanted: Boonton 91-B Schematic

A

amdx

Guest
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%.
 
"amdx"
P.S. To Jeff, This is a tube model, I heeded your advice, I'm using an
isolation transformer.
Click to expand...

** ROTFL !!

Wot simple faith in an idiot's advice.

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





..... Phil
 
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%.
Click to expand...

Hi, Mike -

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

http://bama.edebris.com/manuals/boonton/91ca/
 
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/
Click to expand...

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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