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-   -   Beethoven 4 valve set, Identified as a model 99. (https://www.vintage-radio.net/forum/showthread.php?t=168509)

Peter73 30th Jun 2020 12:01 pm

Beethoven 4 valve set, Identified as a model 99.
 
5 Attachment(s)
Does anyone have any info' on this radio, I have drawn a blank so far.
The valve lineup is: PENA4, VP4B, 345V and an unidentified four pin rectifier.
I'm guessing that it dates from the late 1920's

Station X 30th Jun 2020 12:04 pm

Re: Beethoven 4 valve set
 
Beethoven radios often had a model/serial number stamped on the rear of the chassis where the aerial sockets are.

Peter73 30th Jun 2020 12:49 pm

Re: Beethoven 4 valve set
 
Unfortunately there is nothing stamped on the chassis anywhere.
There is evidence of an ID plate having been removed just below a Mullard copyright plate on the inside of the cabinet.

Station X 30th Jun 2020 12:55 pm

Re: Beethoven 4 valve set
 
Interesting frame aerial.

I assume this is a mains powered TRF set?

Peter73 30th Jun 2020 12:59 pm

Re: Beethoven 4 valve set
 
Yes it would appear to be.

PJL 30th Jun 2020 3:08 pm

Re: Beethoven 4 valve set
 
That sort of dial would place it around 1933/34.

Station X 30th Jun 2020 4:36 pm

Re: Beethoven 4 valve set
 
Yes, not likely to be earlier than about 1933. Droitwich opened in 1934, but the frequency would have been announced in advance and manufacturers would have labelled their dials accordingly.

At some time Beethoven switched from TRF to superhets. My own model 64 is a TRF and I believe "Radio Radio" shows a slightly later numbered model which was a superhet. The model shown would probably have had a lower model number than that.

EDIT. I just had a look at the circuit for model 77 which is a mains superhet.

Gridiron 30th Jun 2020 4:57 pm

Re: Beethoven 4 valve set
 
Only similar sets listed in the Mullard Valve Replacement guide are:
AC78 : VP4 or VP4A (7 pin), 354V, PENA4, IW3
AC99 : VP4 (7 pin), 354V, PENA4, IW4/350
283 : AC/VP1, 354V, PENA4 (7 pin), IW4/350

If model 77 is the same as AC77 this is must be a superhet as has a FC4 in the list of valves.
Mike.

Station X 30th Jun 2020 5:25 pm

Re: Beethoven 4 valve set
 
Quote:

Originally Posted by Gridiron (Post 1265066)
If model 77 is the same as AC77 this is must be a superhet as has a FC4 in the list of valves.

Mike.

Radio Museum have a picture of a 77, but none of an AC77. I don't know whether they're the same set.

Peter73 1st Jul 2020 10:42 am

Re: Beethoven 4 valve set
 
Thanks for your input gentlemen, I will keep looking.

Peter73 8th Jul 2020 2:55 pm

Re: Beethoven 4 valve set
 
1 Attachment(s)
Apologies gents, I should have gone to Specsavers ! How I missed the numbers on the Gram socket panel I really don't know.
99/4333 does this help?

Station X 8th Jul 2020 3:01 pm

Re: Beethoven 4 valve set
 
Beethoven model 99 serial No. 4333.

That probably doesn't get you any further than a positive ID though.

ms660 8th Jul 2020 4:08 pm

Re: Beethoven 4 valve set
 
Something odd to me about this receiver, cabinet front doesn't look right, another receiver planted in the cabinet? Different chassis but similar tuning scale and loudspeaker bars in this one:

https://www.radiomuseum.org/r/beetho...per_minor.html

Lawrence.

PJL 8th Jul 2020 5:37 pm

Re: Beethoven 4 valve set
 
Here is another one: https://www.the-saleroom.com/en-gb/a...8-abeb0126de64

ms660 8th Jul 2020 5:45 pm

Re: Beethoven 4 valve set
 
That's my theory out the window then.

Lawrence.

Station X 8th Jul 2020 5:45 pm

Re: Beethoven 4 valve set
 
Looks like the mains transformer in the OP's set is a replacement.

PJL 8th Jul 2020 7:16 pm

Re: Beethoven 4 valve set
 
Quote:

Originally Posted by ms660 (Post 1267848)
That's my theory out the window then.

Lawrence.

Your theory could be close, maybe Beethoven ordered a load of cabinets and the chassis didn't fit so they reworked by slapping an outer panel on the front.

Peter73 9th Jul 2020 2:14 pm

Re: Beethoven 4 valve set, Identified as a model 99.
 
Thanks very much PJL for identifying my set, much appreciated.
Pete.

McMurdo 9th Jul 2020 3:13 pm

Re: Beethoven 4 valve set, Identified as a model 99.
 
rather a nice set, are you going to restore it?


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