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 Stromberg Carlson Radio for sale
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 Return to top of page · Post #: 1 · Written at 1:21:09 PM on 25 April 2018.
Labrat's avatar
 Location: Penrith, NSW
 Member since 7 April 2012
 Member #: 1128
 Postcount: 272

For sale to Forum Members only.

Stromberg Carlson Radio.
Some damage to the top left of cabinet. One for those that can repair Bakelite

$10.00

Pick -up only!

Stromberg Carlson Radio
Stromberg Carlson Radio
Stromberg Carlson Radio


Wayne.


 
 Return to top of page · Post #: 2 · Written at 10:07:31 PM on 25 April 2018.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 5624

Photos uploaded.


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

 
 Return to top of page · Post #: 3 · Written at 7:53:05 PM on 27 April 2018.
Skymaster's Gravatar
 Location: Ashfield, NSW
 Member since 7 April 2018
 Member #: 2237
 Postcount: 53

Email sent Smile


 
 Return to top of page · Post #: 4 · Written at 11:39:38 AM on 28 April 2018.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1112

This radio has found a new home.


 
 Return to top of page · Post #: 5 · Written at 11:16:45 AM on 13 June 2018.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1112

Finally plugged this in today in series with a light bulb. Supplied the missing 5Y3GT, and the radio worked straight off the bat.

However the speaker sounds like it needs replacing.


 
 Return to top of page · Post #: 6 · Written at 2:59:51 PM on 13 June 2018.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 3860

By the look of it, I suspect that it may not be the speaker and perhaps it needs a birthday to rid it of the distortion.

Some of that rubber wire is pretty sus & IF one needs its cover removed to rewire it.


 
 Return to top of page · Post #: 7 · Written at 4:53:38 PM on 13 June 2018.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1112

Forgot to list the valves: ECH35 (without red shield), EBF35, 6SQ7GT, 6V6GT, 5Y3GT.


 
 Return to top of page · Post #: 8 · Written at 9:11:51 PM on 13 June 2018.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 3860

That;s not an ECH 35 in there. EBF35 is narrow like the other one and would have a wire band just above the base like the EBF35. looks more like 6K8G.


 
 Return to top of page · Post #: 9 · Written at 11:01:18 PM on 13 June 2018.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 5341

Another motherless waif rescued Smile


 
 Return to top of page · Post #: 10 · Written at 12:09:57 AM on 14 June 2018.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1112

It says ECH35 on the base.

According to a site I visited, it should be a 6J8GA.

Maybe someone glued a different base on.


 
 Return to top of page · Post #: 11 · Written at 9:04:25 PM on 14 June 2018.
BringBackTheValve's Gravatar
 Location: Linton, VIC
 Member since 30 December 2016
 Member #: 2028
 Postcount: 229

Yep, that model used a 6J8GA for the local oscillator.

Model 5A27 oscillators used a 6SA7G valve (no TC). I suspect the former valve may have been less reliable than the latter, or perhaps
less available?? I say this because both receivers were made during the same time ---circa '48-'49.

Stromberg Carlson 5A27 Table Radio
Stromberg Carlson 5A27 Table Radio
Stromberg Carlson 5A27 Table Radio


 
 Return to top of page · Post #: 12 · Written at 7:57:52 PM on 15 June 2018.
Brad's avatar
 Administrator
 Location: Greenwich, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 5624

Photos uploaded to Post 11.


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

 
 Return to top of page · Post #: 13 · Written at 1:17:56 PM on 20 June 2018.
Robbbert's avatar
 Location: Sydney, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 1112

Did a bit more work on it. Replaced all the waxed caps.

I found a 6J8GA and it worked - for half an hour - then silence. Touching the valve got it going again. It didn't take long to find out which pin in the valve base was dry-jointed. Soldered up a few pins and it sprang into life. In the old days we'd just replace it but we cannot afford that luxury now.

Replaced the 6V6 grid bias resistor (was 700k instead of 500k), and the 6SQ7 anode resistor (was 1152k instead of 250k), and the 6V6 cathode electrolytic. The speaker transformer had been replaced in the past, so I rerouted the anode wire away from the 6V6 G1.

The choke was open circuit and this had been replaced with a 150 ohm, 20 watt resistor in the past. Left it, as it was working well enough.

Sorted out the stiff tone control and tuning pulleys.

Only thing left is the speaker replacement... if I have one.

Apart from that it works quite well.


 
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