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 Information wanted on an Electro-Voice wooden mantle
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 Return to top of page · Post #: 1 · Written at 1:57:22 PM on 6 August 2019.
JFB's Gravatar
 JFB
 Location: Milton, NSW
 Member since 27 June 2016
 Member #: 1945
 Postcount: 35

I have an Electro-Voice mantle radio on the bench to fix
It's a wooden case, valve lineup appears to be 6J8, 6U7G, 6B8, 6V6GT, 5Y3. It has a permeability tuner, no prefix in the ARTS&P

haven't been able to locate any information on it all, so all information gratefully received, especially a schematic and dial stringing diagram.


Thanks Joe

Electrvoice Valve Radio
Electrvoice Valve Radio
Electrvoice Valve Radio
Electrvoice Valve Radio
Electrvoice Valve Radio


 
 Return to top of page · Post #: 2 · Written at 8:25:30 PM on 6 August 2019.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 5262

Is it definitely a 6B8?


 
 Return to top of page · Post #: 3 · Written at 10:09:47 PM on 6 August 2019.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 5510

It is definitely a very late 1940s receiver. My guess by the way the chassis is made, the style of the dial and the presence of Bakelite valve sockets, probably 1949 or very early 1950. Whilst the valve line-up is always a help, there's no guarantee that the correct valves are in a radio. This probably needs to be worked out first. There were times in years gone by when someone would just insert any valve that fitted the socket in order to try and get a radio going again but this doesn't always work and, depending on the substitute valve, can have dire consequences.

So far, the only reference to Electro-Voice on my internet searches has shown results for an American PA amplifier company.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 4 · Written at 11:59:40 PM on 6 August 2019.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1405

I would suggest you look up Kingsley radio in kevin Chants website. I have a kingsley with exactly the same escutcheon and ferrotune gang. It looks very similar underneath as well. Good performer as well.


 
 Return to top of page · Post #: 5 · Written at 12:05:51 AM on 7 August 2019.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1405

Actually the dial is exactly the same as my Kingsley . And the cabinet is a similar construction, My kingsley was a kit set but yours is obviosly factory..The only difference in the dial is yours has Electro Voice written where mine has Ferrotune written.


 
 Return to top of page · Post #: 6 · Written at 12:07:06 AM on 7 August 2019.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 1405

My Kingsley is here in general discussion. I will try and find it and bring it up for you. There you go its titled Ferrotune and AWA Champion.


 
 Return to top of page · Post #: 7 · Written at 12:30:35 AM on 7 August 2019.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 5262

Here it is, the KFT1. That valve should be 6G8:

https://www.radiomuseum.org/r/kingsley_ferrotune_kft1.html


 
 Return to top of page · Post #: 8 · Written at 6:09:22 AM on 7 August 2019.
MonochromeTV's avatar
 Location: Melbourne, VIC
 Member since 20 September 2011
 Member #: 1009
 Postcount: 1043

In some cases 6B8G & 6G8G can be interchangeable. Both valves are based on the earlier 6B7 & 6B7S respectively.

As per Carls suggestion the full article & constructional details can be found here:

https://www.kevinchant.com/uploads/7/1/0/8/7108231/kingsley_ferrotune.pdf


 
 Return to top of page · Post #: 9 · Written at 8:52:06 AM on 7 August 2019.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 5262

6G8 is far more common. I can find around around 200 models with it, and just a handful using the 6B6.


 
 Return to top of page · Post #: 10 · Written at 4:35:43 PM on 7 August 2019.
JFB's Gravatar
 JFB
 Location: Milton, NSW
 Member since 27 June 2016
 Member #: 1945
 Postcount: 35

Thanks everyone, fantastic help.

GTC , yes it's definitely a 6B8, closer look around may confirm if it's the right valve

Brad, yes nothing on the web at all other than an old ebay add which looks suspiciously like the actual radio on my bench.

Joe


 
 Return to top of page · Post #: 11 · Written at 5:42:11 PM on 7 August 2019.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 3707

Of great benefit is the fact that it has a very common valve combination. Supporting the fact that all is not as it seems is to look at what parts that are in it that are non original, or not from its era, & that says its been got at.

The questions are: Why has it still got the red Ducon and paper caps in it? Styroseal & Polyester caps & resistors from different era's?

Not many used permeability tuners in that era, so that may be a clue to it being badge engineered.

This will definitely need a circuit and a comparison to it before doing a lot to it. Powering not being one of the do's.

Marc


 
 Return to top of page · Post #: 12 · Written at 7:18:20 PM on 7 August 2019.
Fred Lever's Gravatar
 Location: Toongabbie, NSW
 Member since 19 November 2015
 Member #: 1828
 Postcount: 574

Hi Joe, what a great restoration project, that permeability tuner needs some close attention!
I'm with Marcc with a set like this , EVERY capacitor and resistor should be replaced with no exception.
It deserves a chassis up restoration and the good news its all there and most of the parts are pretty standard fare for the age (except for the tuner!)
Good luck.
Fred.


 
 Return to top of page · Post #: 13 · Written at 7:37:47 PM on 7 August 2019.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1074

Nice radio, shouldn't be too difficult to restore. At least it has very common valves. As the others have said, replace most of the resistors and capacitors. The tuner looks like it's been belted with a hammer, but should be retrievable.


 
 Return to top of page · Post #: 14 · Written at 8:47:31 PM on 7 August 2019.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 3707

Wrong dial string & too many turns. Last one I replaced was actually torched by the transformer.


 
 Return to top of page · Post #: 15 · Written at 9:24:30 PM on 7 August 2019.
NewVista's avatar
 Location: MilwWI, US
 Member since 10 May 2013
 Member #: 1340
 Postcount: 605

Using name Electro-Voice - identical to large US company - would have landed them with a 'cease & desist' order, making surviving examples collectable!


 
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