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SUPERIOR INSTRUMENTS CO. C.R. BRIDGE AND SIGNAL TESTER
#1

Ok started to work on this.. A Model 76..I have a copy of manual and schematic.. However some of parts do not follow manual as to value.. EX: one resistor said 250K but I have a 42K in that place.. Also a lot of different hookup not following schematic..

Did anyone work on this model? I am not sure if to change everything according to manual and schematic or to leave as is and just replace out of Tolerance parts???

Thoughts..

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#2

Ok, Changed the Filter cap.. powered up and seems to work.. measured a resistor and a cap.. pretty close on dial..

eye tube nice and bright a little sensitive on adjustment

did not check the tracer part yet..

But now i will replace all of the other caps that need it.. Then try again..

One question Where can I get the banana type plugs that go to front panel so i can make up some test leads..

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#3

I bought banana plugs for a meter box I built from Amazon. They are duals but you can take them apart and make singles. Below is the description:

Wiwaplex 10Pcs Gold plated Insulated Terminal Binding Post Power Amplifier Dual 2-way Banana Plug Jack

1929 Victor R-32, 1933 60L, Phil 40-158, Phil 42-400X, Phil 47-1230 Radio/Phono,, 1950 Phil TV t-1104, Air King 4000, Philco 41-105, Philco 37-675, RCA Victor 9K2, PT-50, Phil 54C, PT-44 Cabinet, Phil 118X Cabinet

Gregg Icon_thumbup
#4

Ok, All caps replaced.. Seems to be working as I can read Resistance and Capacitance.. The Signal Tracer seems to work also..

Not sure about RF side though.. I do not have the RF probe.. I tried to make one from the instructions but doesn't seem to work Right..

Get no deflection on tube or hear nothing in speakers..

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