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

Marvelo?
#1

Has anyone heard of the radio brand marvelo or maybe a parent company? I was given a 7 tube, 2 thumbwheel dial early radio (trf?) that other than some cut wires and missing both of the audio transformers is in great shape, I would like to restore it to working condition but I can not find any info on the radio or brand name. Although all 7 tube sockets are 4 pin I dont know if it takes all 01a's or not. I will post a pic later.
Thanks for any info,
Todd
#2

Marvelo was a trade name used by the Radolek Co.

Mike Koste
Gobs of Knobs
Zucksville, PA
#3

Thanks, but the marvelos they have on nostalgia air under radiolek are newer ac schematics.
Even though early radios are simple designs how would one know what tubes and transformer ratios to use without a schematic?




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
6TPZ and 5TPO Radio Help
On K2, pins 1&2 are shorted. On K4, Pins 1&3 are shorted. Others are OK. The voltages are the same except #4....R3Sons — 09:29 PM
Philco 40-120C Filament Wiring
Let's try to sort it out. So we are working with the same info here's the schematic I have: ...and here's the pin o...klondike98 — 09:03 PM
Philco 630csx power cord
I posted this on FB but knowing that not all of us use social media, it seemed sensible to ask my question here.  I r...Tynwald — 08:07 PM
Philco 40-155
At last, got this working well. Impressed has really nice reception and tone. Had a bad connection on one of the capaci...rogerh — 07:44 PM
Philco 91 Restore Code ??
Or you could just square the current :lol: As for the values, they are dependent on the 1 or 2-speaker system. The...morzh — 05:46 PM
Philco 91 Restore Code ??
If you know the fc resistance you can use 120 ma nominal current through the resistor to get the voltage drop then calcu...RodB — 05:21 PM
Philco 91 Restore Code ??
Thanks Mike. I at least know why it is there if I don't fully understand it. I see where you talk about a cap and resist...dconant — 04:49 PM
Philco 91 Restore Code ??
Well, this cap you showed cannot possibly, due to the way it is constructed, be 1000pF (0.001). It can be in tens of pF....morzh — 03:13 PM
Philco 91 Restore Code ??
I have two schematics for this radio one shows the 47 block (126-226) and the other (121-221) does not. My radio does no...dconant — 02:32 PM
Philco 91 Restore Code ??
No, that cannot be the 47. The 47 is a regular backelite block cap. Look at the chassis picture, it is shown there. Rig...morzh — 01:45 PM

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

>