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FERNSEH · 3rd Jul 2017, 1:47 pm

Have you decided which TV channel the set was set up for? Reading the earlier (many!) posts it seems a little unclear to myself !

Is it possible that somebody attempted to retune the Set and gave up?
Hi Steve,
it's certain that the set was modified to receive the Holme Moss transmitter. I've tried retuning the set to channel 4 and also channel 1, the receiver will just not work properly on those channels. Everything in the RF circuits has been optimised for channel B2. And as has been stated earlier in this discussion the conversion work has been done by a very competent engineer, someone with a good knowledge of RF circuit design. It is evident by the choice of valves, the EF54 for superior HF performance and the EF50 for it's good gain control characteristics. But it's not only the extreme sensitivity but also the excellent picture quality, it's good for 3Mhz.

DFWB.

3rd Jul 2017, 1:47 pm	#124
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: HMV 1804 Television. Have you decided which TV channel the set was set up for? Reading the earlier (many!) posts it seems a little unclear to myself ! Is it possible that somebody attempted to retune the Set and gave up? Hi Steve, it's certain that the set was modified to receive the Holme Moss transmitter. I've tried retuning the set to channel 4 and also channel 1, the receiver will just not work properly on those channels. Everything in the RF circuits has been optimised for channel B2. And as has been stated earlier in this discussion the conversion work has been done by a very competent engineer, someone with a good knowledge of RF circuit design. It is evident by the choice of valves, the EF54 for superior HF performance and the EF50 for it's good gain control characteristics. But it's not only the extreme sensitivity but also the excellent picture quality, it's good for 3Mhz. DFWB.