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Post by Bob Killip on Aug 9, 2020 22:35:34 GMT 12
Can anyone identify this radio please? I'm confident it's NZ made as the speaker is a "Swan electric NZ" Rola K8. 6 valve dual wave AC; from late 1930's I figure. The dial has no stations printed but the picture of a biplane and skyscraper-like pointer should be a clue. No identifying stickers or plates at the rear or any other markings but my best guess is Radio Corp NZ as the escutcheon looks like classic Stella/Skyscraper. Known valve line-up is 80, 42, 6B7, 6A8, 6D6 and one unknown; very close to Radio Corp Model 18 (1936) "D W Aldebaran". Look forward to comments. Cheers, Bob   |
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Steve
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Post by Steve on Aug 10, 2020 10:03:55 GMT 12
The lineup I would expect is 6D6, 6A7, 6D6, 6B7, 42, 80 which was a really common Radio Corp lineup in the mid 30's... the 6A8 is odd (although they are electrically identical from memory), it could have been swapped in later if a 6A7 was not available? Does the socket look original? Having said that, the Air King DW above also used a 6A8... so maybe its just a late 30's model and they were on the cusp of swapping over to octals. The cabinet reminds me of the Courtenay model 63 cabinet styling.
So, my guess is Exelrad...
Cheers, Steve
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Steve
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Post by Steve on Aug 10, 2020 10:13:41 GMT 12
Only three controls, but otherwise from what I can see this looks almost identical...
This also looks the same.
Cheers, Steve
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Post by Bob Killip on Aug 10, 2020 11:57:08 GMT 12
Thanks Steve. That's the one. When I quoted 6A8 the actual is X63 (direct equivalent I think).
Regards,
Bob
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Steve
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Post by Steve on Aug 10, 2020 12:06:43 GMT 12
No worries Bob. X63 sounds VERY Radio Corp... I'm not aware of any other companies here using those valves...
Cheers, Steve
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Post by Richard on Aug 10, 2020 16:39:27 GMT 12
The Power transformer looks very much like Radio Corp ?
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Steve
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Post by Steve on Aug 10, 2020 17:18:14 GMT 12
It should... Radio Corp made most (all?) Exelrad components for Turnbull and Jones in the 30s...  |
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Post by Steve on Aug 11, 2020 12:36:47 GMT 12
www.vintageradio.co.nz/model/exelrad/6dxiHi Bob, I've added the model to vintageradio.co.nz so at least you'll have a starting point with the schematic - if you have a photo (or two) of the set all together I could add those as well - I'd also love some 'real' chassis photos (top and bottom) to add to the model page too if you are willing and able... Cheers, Steve
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Post by Richard on Aug 12, 2020 15:52:22 GMT 12
www.vintageradio.co.nz/model/exelrad/6dxiHi Bob, I've added the model to vintageradio.co.nz so at least you'll have a starting point with the schematic - if you have a photo (or two) of the set all together I could add those as well - I'd also love some 'real' chassis photos (top and bottom) to add to the model page too if you are willing and able... Cheers, Steve Steve, if you look at the schematic around the double diode on the 6B7, youll see a mistake with the AGC circuit. They have the diode going to Earth, when it should go through a missing 1 Meg load resistor to earth. |
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Steve
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Post by Steve on Aug 18, 2020 14:53:44 GMT 12
Thanks Richard, I'll take a look at that at some point. I assume these kitsets came with documentation including schematics and wiring info that would have had more up-to-date details - I've never seen any original documentation for these though. I've only ever seen one Exelrad radio in the flesh, and that was in a second hand shop in Paeroa(? I think. Vintage & Retro?) on the way up to the AGM the other week... the lady in the shop was haughty, rude and disinterested which wound me up very quickly... so I got annoyed and walked away without even taking photos of it. They also had a ZC1.
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Post by Bob Killip on Aug 28, 2020 22:35:50 GMT 12
Steve, Is it possible the set you saw in Paeroa was at "True Collectors" on the Northern end of the main road? The set we're discussing here is from that shop and given to me for repair a few weeks ago, but possibly not, as the lady owner I deal with is very hospitable... not rude, as you described. Here's some pics as requested. I couldn't attach all so will append in a new reply here. Not particularly good quality so let me know if you would like better ones & I will sort them as time permits.   Attachments:
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Steve
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Post by Steve on Aug 29, 2020 11:51:44 GMT 12
Hi Bob, I don't really recall the name of the shop or the radio details but it seems like quite a coincidence... If so, maybe she was having a bad day. I don't recall the name of the place - it was somewhere around here from memory (it was a long day and we stopped at a lot of places on the way up).  Thanks for the photos - high res shots are always appreciated, but any photo is always appreciated - it will hopefully help others identify what they have in the future. As a side note, that chassis looks to have Radio Corp trimmers, which probably removes any possible remaining doubt as to its origins. Cheers, Steve |
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