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

Converting a 46-1203 to play 33s
#1

I found it in a warehouse that had some stuff of an old relative. It's in perfect shape and works flawlessly. Is it possible to convert it to play 33s?

Let me say this... this is the first vintage radio/turntable I've ever dealt with. I have some experience working on old guitar tube amps, so I'm not a complete newbie. However dealing with motors and such would be new territory for me. I found a good schematic of this model and I have an old ARRL handbook that might help. But I'm wondering if this is even possible. It seems to me that all I'd have to do is find a way to slow the motor down. Please advise.

Thanks!!
John
#2

You could, possibly, but if this is one of the sets that I am thinking of it likely isn't practical. A 78 rpm machine, regardless of what you do with it, would be very hard on LP records, they weren't designed for dynagroove or stereo records so the tone arm weight alone might damage them. The easiest thing to do would be to find a separate 33 rpm record player and pipe it into the radio either through wires or a wireless transmitter, that way the original unit stays intact. I don't think that a Garrard, BSR, VM, or any of the later changers would fit without substantially modifying the cabinet as the original machine was specifically built for Philco.
Best Regards
Arran
#3

Thanks Arran. It looks like I'll have to find some 78s, because the tubes and speaker in this thing sound amazing! Icon_biggrin




Users browsing this thread:
[-]
Recent Posts
Cannot Adjust an IF Transformer’s cores
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM
PT-6 antenna connections
I seem to have lost my way on this PT-6. I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM
40-150 General questions
Good thing you're a good electrician ... the pictures show a lot of rewiring in your future! Take care and BE HEALTHY!...GarySP — 11:52 AM
40-150 General questions
I think RobB has it right. It is a part number and looks like its stamped on the chassis and that wasn't something you ...klondike98 — 11:41 AM
40-150 General questions
It's most likely a part number. Most of Philco part numbers are in that format. I looked at the parts list for this mode...RodB — 08:10 AM
40-150 General questions
Hi Kevin, No, I don't but I like your Quote about being a good electrician. The way I look at it is "The fact ...MrFixr55 — 08:06 AM
Philco 38-7 Speaker
7K should be fine. While not a perfect match (This transformer is meant for 6V6 tubes), Antique Electronic Supply (AES)...MrFixr55 — 08:03 AM
40-150 General questions
I discovered a stamp on the underside of the breadboard on my Philco 40-150. It is"56-1417' in black ink with numbe...Kevin_D — 07:14 AM
Philco 38-7 Speaker
FYI the Impedance of the HR20 (the one I have) secondary of the audio transformer is 5 ohms. The 38-7XX speaker is suppo...tludka — 04:22 PM
Philco 38-7 Speaker
Yeah, don't use the transformer currently on the H-20 (Dopf, I thought "H20, is that new technology, a speaker usin...MrFixr55 — 03:51 PM

[-]
Who's Online
There are currently 2771 online users. [Complete List]
» 2 Member(s) | 2769 Guest(s)
AvatarAvatar

>