[Milsurplus] Wanted: Manual for Test Set I-135 (for BC-611)

[Mike Feher]

John -

The manual states that the meter (M1 on the I-135) is 425 ua full scale. It
does also warn not to adjust the two screws on the back as they are factory
set. 73 - Mike

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960



-----Original Message-----
From: milsurplus-bounces at mailman.qth.net
[mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of John Kidd
Sent: Thursday, July 01, 2010 12:00 AM
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] Wanted: Manual for Test Set I-135 (for BC-611)

Hi all,

Does anyone have a manual or schematic available for test set I-135 
for the BC-611?

My test set had an open circuit meter moving coil. I replaced it with 
a Japanese 1mA movement.
Now it reads about 1/3 of what it should. So I need to massage the 
meter resistors.

Oh, I put the movement inside the original meter case so it looks 
original, no mutilation here.

Anyone want to tackle rewinding the movement coil :-)

An interesting observation was that there were two steel screws on 
the meter case near the magnet poles.
I assume these were to adjust linearity over the range, as the screws 
were screwed in at different lengths.
I have not seen this before.

Cheers,

John Kidd. VK3FPRC

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