Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

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..

Skip
#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..

Skip
#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..

Skip




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM
B&K 1077B no video
Thanks Rich! I'll take a look and see what he has. I know there's more modern equipment to be had, but this one I know a...TV MAN — 09:11 PM
B&K 1077B no video
Hello Tim, Here is a link to restoration of one on Phil's old radios site ! Sincerely Richard bk1077bradiorich — 09:01 PM
6TPZ and 5TPO Radio Help
I'm a little befuddled on this one. Should X5 and X4 be tied together like this?  It looks like someone added this at so...R3Sons — 07:33 PM

[-]
Who's Online
There are currently no members online.

>