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: 1 Guest(s)
[-]
Recent Posts
Need to purchase some accessories for restoration of my Old Philco Radio
Hi Paulo, Welcome to the Philco Phorum. I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM
HiFi (Chifi) tube amp build - but my own design.
Tim, I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM
Philco 610B oscillator wiring
> The cathode as noted is wired directly to the ground side of the heater filament for that tube, not to the #17 and ...Radioroslyn — 08:12 PM
HiFi (Chifi) tube amp build - but my own design.
Tim; I noticed your post a little late, but I would take one of the junk sockets and try to break a chunk out of it wi...Arran — 08:07 PM
Need to purchase some accessories for restoration of my Old Philco Radio
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM
First Radio restoration
Hi Tubeman, Welcome to the Philco Phorum.  Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM
First Radio restoration
You could post in the WANTED ADs section here on the Phorum and see if anyone has an RF generator that they want to sell...klondike98 — 11:55 AM
Zenith H725
Good ideas, thank you Arrange and Rich. I have the adhesive aluminum foil already and can try that immediately. More ...EdHolland — 10:18 AM
Graphics for majestic 1050 dial glass.
Murf; I found this thread on the ARF, the first photo has a pretty good view of the dial glass. Regards ArranArran — 01:12 AM
Zenith H725
hello Ed, how about that speacial tape used for ducting it's like foil or how about thin piece of aluminum roof flash...radiorich — 12:19 AM

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

>