UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Effect of using lower resistance Volume Control?

Studio263 · 25th Oct 2007, 12:11 pm

If it's a car set don't get caught out like I did, I thought the Phillips 344V that I restored for my old VW was suffering with low gain too but it turns out that the coupling to the antenna is critical and that the antenna only works properly when it is attached (and grounded) to the car body. On the bench these conditions were not met and so it appeared that the gain of the set was (very) low, despite all the suspect capacitors and resistors having been replaced and all the DC conditions being normal.

Following the (very good) advice from forum members I fitted the set and the results were then perfect (no supressor caps needed on the coil or generator either, because the engine is in the back it is far enough away from the antenna and the set not to spoil the reception).

25th Oct 2007, 12:11 pm	#4
Studio263 Octode Join Date: Apr 2007 Location: Hampshire, UK. Posts: 1,578	Re: Effect of using lower resistance Volume Conrtol? If it's a car set don't get caught out like I did, I thought the Phillips 344V that I restored for my old VW was suffering with low gain too but it turns out that the coupling to the antenna is critical and that the antenna only works properly when it is attached (and grounded) to the car body. On the bench these conditions were not met and so it appeared that the gain of the set was (very) low, despite all the suspect capacitors and resistors having been replaced and all the DC conditions being normal. Following the (very good) advice from forum members I fitted the set and the results were then perfect (no supressor caps needed on the coil or generator either, because the engine is in the back it is far enough away from the antenna and the set not to spoil the reception).