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 Stromberg Carlson Model 5a29
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 Return to top of page · Post #: 1 · Written at 2:05:25 PM on 20 June 2023.
Bowler's Gravatar
 Location: Bongaree, QLD
 Member since 26 October 2018
 Member #: 2308
 Postcount: 81

Hi All, I am repairing a stromberg carlson model 5A29. Has anyone got any info on this model such as a list of components and valve voltages. bowler


 
 Return to top of page · Post #: 2 · Written at 2:26:44 PM on 27 June 2023.
Robbbert's avatar
 Location: Hill Top, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 2039

I'm pretty sure I have one of those radios working - but I don't have any diagrams etc.


 
 Return to top of page · Post #: 3 · Written at 8:43:22 PM on 27 June 2023.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5303

Its in AORSM's Circuit is for sets ser Nr above 61801. 1949 possibly tube changes from previous. 6BE6 6BA6 6AV6 6V6 6X5. IF 455kHz


 
 Return to top of page · Post #: 4 · Written at 9:36:24 PM on 27 June 2023.
GTC's avatar
 GTC
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 6720

I have emailed you the schematic and alignment notes, if of any use.


 
 Return to top of page · Post #: 5 · Written at 9:34:54 AM on 28 June 2023.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5303

Noting that I have had several 6BA6 & the 12V versions short lately. It is always useful to have the circuit; Especially if its been monkeyed with.

Having voltages on circuits, is being optimistic, Both in Australia and USA unless you can get the factory service info they're are many which are pretty slack with detail. Most of the German ones are the opposite & list voltages and in a lot of cases all element currents & you can often tell a tube is a dud with a voltmeter without removing it.

Marc


 
 Return to top of page · Post #: 6 · Written at 9:47:45 AM on 28 June 2023.
Bowler's Gravatar
 Location: Bongaree, QLD
 Member since 26 October 2018
 Member #: 2308
 Postcount: 81

Good morning all, Many thanks for your informative replies. Thanks GTC for the circuit.Regards bowler


 
 Return to top of page · Post #: 7 · Written at 5:17:22 PM on 29 June 2023.
Robbbert's avatar
 Location: Hill Top, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 2039

I thought this radio was fully octal. I'll need to find mine and check.


 
 Return to top of page · Post #: 8 · Written at 12:25:21 AM on 30 June 2023.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5303

One has to be on the ball with some of the goings on, especially during the War. WD had a bad habit of scarpering off with certain valves & so did others, by non legal means.

I think HMV 661 was one where a tube was subbed with a Philips tube with appropriate circuit mods. Some sets reverted to six pin socket tubes during the war and its not unusual to see the six pin radio, be reincarnated with a socket change & octal tubes. All that actually changed was the socket & tube base as the octal was the same tube. Plenty of that went on with heater & base changes only.


 
 Return to top of page · Post #: 9 · Written at 2:44:28 PM on 2 July 2023.
Robbbert's avatar
 Location: Hill Top, NSW
 Member since 18 September 2015
 Member #: 1801
 Postcount: 2039

Found my radio, valves are all octal.

The line-up is exactly the same as what it says at https://www.radiomuseum.org/r/stromberg_5a29_octal_valves_only.html

6J8GA, EBF35, 6SQ7GT, 6V6GT, 5Y3GT.


 
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