What is the total number of tubes in the radio (socket count). Looking at the tube sockets are the missing tubes 8-pin octal or 8-pin locktal tubes.
Radiodoc
**********
:I have a Philco end table radio/phonograph with missing tubes and no identification to find a schematic. I would be happy if I could just get a tube alignment. The two tubes in the chassis are....35L6 and 50Y7..Also, the numbers I could find are----P61226 and 10962-1.
:I would appreciate it if someone could give assistance.
:Regards
There are five tubes in this radio with the first two being octal and the next three loctal. The top view is showing as follows, all in line:
Elect. cap--50Y7 octal tube--35L6 octal tube--missing loctal tube--transformer--missing loctal tube--transformer--missing loctal tube.
Regards
Job
:Job,
:
:What is the total number of tubes in the radio (socket count). Looking at the tube sockets are the missing tubes 8-pin octal or 8-pin locktal tubes.
:
:Radiodoc
:**********
:
:
::I have a Philco end table radio/phonograph with missing tubes and no identification to find a schematic. I would be happy if I could just get a tube alignment. The two tubes in the chassis are....35L6 and 50Y7..Also, the numbers I could find are----P61226 and 10962-1.
::I would appreciate it if someone could give assistance.
::Regards
:Radiodoc:
:
:There are five tubes in this radio with the first two being octal and the next three loctal. The top view is showing as follows, all in line:
:Elect. cap--50Y7 octal tube--35L6 octal tube--missing loctal tube--transformer--missing loctal tube--transformer--missing loctal tube.
:Regards
:Job
:
:
:
:
:
:
::Job,
::
::What is the total number of tubes in the radio (socket count). Looking at the tube sockets are the missing tubes 8-pin octal or 8-pin locktal tubes.
::
::Radiodoc
::**********
::
::
:::I have a Philco end table radio/phonograph with missing tubes and no identification to find a schematic. I would be happy if I could just get a tube alignment. The two tubes in the chassis are....35L6 and 50Y7..Also, the numbers I could find are----P61226 and 10962-1.
:::I would appreciate it if someone could give assistance.
:::Regards
Job, this site has a great tube sub site, I checked and the 7A7 is a sub tube. PL
7A7 is 300ma. 7B7 is 150ma. It won't work because of the series hookup. In a pinch, a 14A7, 14H7 and possibly others would work. It has to have a 150 ma heater. Voltage of that tube is secondary in this set.
Fred R
Well...considering that locktal tube might not be easy to come by in Canada / Newfoundland /BC...I forgot.... as well as its shipping cost along with that required wait......
Its not an easy find, like the companion 6/12SK7/6SG7/6/12BA6 family of common octal or miniature tubes can be. But then, since you DO have that 7A7 300 ma filament version. What you might do to evaluate your set and see what the condition of it is like..... and if justifiable to dedicatedly spend for special parts / tubes in restoring / repairing it.
You could remove the filament wires from the IF tubes pins 1 and 8 and dress them completely aside from circuitly to be able to interconnect them to at least a 1 watt 40-47 ohm resistor...or (3) 120 ohms 1/2 W's in parallel, to fill in for the series loading represented by that tube. Then you get (4) $1 D- sized cells from the Dollar Store...unless some are on hand already. Pull out the heavy soldering iron and series connect the cells to get 6VDC available across the series string. Then solder one one batt series wire terminal to the vacated tubes pin 1 or 8 and a short, loose wire to the remaining filament terminal. Then a twisting of the loose battery wire to the short one will make a "psuedo " switch.
That should get that 7A7's filament lit up and the set should then be in a state to evaluate as to being operational or not with what parts are in the set. If all is well then one merely needs to then get a valid locktal tube and reinstate the lifted filament wiring.
Whaddayathink?
73's de Edd
Gentlemen----An interesting dioloque indeed but due to my limited knowledge and experience, it may be best for me to order the tube. I find this set unique and after Christmas I'm hoping to have both the radio and phonograph working, and the wood refurbished. My major task will be persuading the other half to let me place this unique "endtable" next to my recliner.
Again, thanks for all the help I have received from this forum since I have started this wonderful hobby.
Cheers
Job
Job,
I apologize for not getting back to you but I had to make a visit to my other half of the family (300 miles away) and when I got there found the computer I was hoping to use had crashed so I didn't get to get back to you until now. I have found you were in very good hands though.
Radiodoc
**********
Doc----I will be gone for a week beginning tomorrow also and not because I want to. Anyhow, as I mentioned previously I do appreciate the help that yourself and others are giving me with my radios.
Cheers