Dynatron RG39A Wiring Advice - UK Vintage Radio Repair and Restoration Discussion Forum

IconicVinyl · 25th Oct 2019, 1:55 pm

I have just acquired a Dynatron RG39A with the original Garrard record deck and replacement Sharp tuner and amplifier. There are three thin wires looped to the base of the cabinet which feed through the area housing the amp and tuner then out the back of the unit and are terminated in two black and one red plug as shown in the attached - can anyone please tell me what they are for. My suspicion is they related to the old amp and tuner?
Many thanks

Techman · 25th Oct 2019, 5:30 pm

I think you need to supply a bit more information such as pictures of the rest of the unit so that we can make a proper diagnosis.

Nickthedentist · 25th Oct 2019, 6:28 pm

They may well go to the internal speaker(s), but as Techman says, send us more pictures please.

teetoon · 25th Oct 2019, 8:42 pm

Hello. I've had similar Dynatron RG's to play with etc and those plugs are internal aerial connections.
The 2 black are the FM dipole and the red is for AM.
You will find the sockets on a small panel at the back of the RG.

Hope this helps.
David.

Techman · 25th Oct 2019, 9:10 pm

Quote:

Originally Posted by teetoon

You will find the sockets on a small panel at the back of the RG.

This may not be the case as the OP seems to indicate that all the original guts, other than the record deck, have been removed, hence why we need some more pictures. However, you're more than likely correct with what you say as regards to the original use of those plugs.

teetoon · 25th Oct 2019, 9:20 pm

Ah, quite right Techman. I somehow missed the "replacement Sharp tuner and amplifier" bit. But that's what the plugs would have been for originally.
I've just had a look in my workshop and I still have the AM wire with the red plug from one of these lovely RG's I scrapped back in 2016.

I would say the Sharp installation is a massive improvement over the original electronics. Certainly in terms of reliability. YMMV.

David.

Techman · 25th Oct 2019, 9:46 pm

Yes, if the OP does come back with some more pictures, it'll certainly be interesting to see the modification that has actually been done with the replacement units.

25th Oct 2019, 1:55 pm	#1
IconicVinyl Retired Dormant Member Join Date: Oct 2019 Location: Corsham, Wiltshire, UK. Posts: 1	Dynatron RG39A Wiring Advice I have just acquired a Dynatron RG39A with the original Garrard record deck and replacement Sharp tuner and amplifier. There are three thin wires looped to the base of the cabinet which feed through the area housing the amp and tuner then out the back of the unit and are terminated in two black and one red plug as shown in the attached - can anyone please tell me what they are for. My suspicion is they related to the old amp and tuner? Many thanks Attached Thumbnails

25th Oct 2019, 5:30 pm	#2
Techman Dekatron Join Date: Nov 2009 Location: Lincolnshire, UK. Posts: 5,000	Re: Dynatron RG39A Wiring Advice I think you need to supply a bit more information such as pictures of the rest of the unit so that we can make a proper diagnosis.

25th Oct 2019, 6:28 pm	#3
Nickthedentist Dekatron Join Date: Jan 2005 Location: Oxford, UK. Posts: 17,866	Re: Dynatron RG39A Wiring Advice They may well go to the internal speaker(s), but as Techman says, send us more pictures please.

25th Oct 2019, 8:42 pm	#4
teetoon Heptode Join Date: Dec 2010 Location: Barnstaple, N.Devon, UK. Posts: 557	Re: Dynatron RG39A Wiring Advice Hello. I've had similar Dynatron RG's to play with etc and those plugs are internal aerial connections. The 2 black are the FM dipole and the red is for AM. You will find the sockets on a small panel at the back of the RG. Hope this helps. David.

25th Oct 2019, 9:20 pm	#6
teetoon Heptode Join Date: Dec 2010 Location: Barnstaple, N.Devon, UK. Posts: 557	Re: Dynatron RG39A Wiring Advice Ah, quite right Techman. I somehow missed the "replacement Sharp tuner and amplifier" bit. But that's what the plugs would have been for originally. I've just had a look in my workshop and I still have the AM wire with the red plug from one of these lovely RG's I scrapped back in 2016. I would say the Sharp installation is a massive improvement over the original electronics. Certainly in terms of reliability. YMMV. David. Last edited by teetoon; 25th Oct 2019 at 9:40 pm.

25th Oct 2019, 9:46 pm	#7
Techman Dekatron Join Date: Nov 2009 Location: Lincolnshire, UK. Posts: 5,000	Re: Dynatron RG39A Wiring Advice Yes, if the OP does come back with some more pictures, it'll certainly be interesting to see the modification that has actually been done with the replacement units.