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FERNSEH · 14th Jul 2014, 3:50 pm

Hi Gavin,
I'm sure you will have read my topic about the line output transformer subsitution in a Decca DR123. The DR123 has printed circuit boards, however, much of the line timebase circuitry is similar to your DR101.
I'll swot up on the circuit of the DR101 I'll report my findings about the viabilty of fitted a 1400 LOTx in your set. The mechanical considerations will be much easier in your set than the later model. You'll need one of my famous adaptor plates.
I have to say I was disappointed when I found my set was fitted with the PCB chassis, I'd rather have the hand wired set.

Have you checked for line drive to the PL36 line output valve? There should be at least 40 volts negative at the control grid of the PL36.

DFWB.

14th Jul 2014, 3:50 pm	#11
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: End of my beloved DR101 Hi Gavin, I'm sure you will have read my topic about the line output transformer subsitution in a Decca DR123. The DR123 has printed circuit boards, however, much of the line timebase circuitry is similar to your DR101. I'll swot up on the circuit of the DR101 I'll report my findings about the viabilty of fitted a 1400 LOTx in your set. The mechanical considerations will be much easier in your set than the later model. You'll need one of my famous adaptor plates. I have to say I was disappointed when I found my set was fitted with the PCB chassis, I'd rather have the hand wired set. Have you checked for line drive to the PL36 line output valve? There should be at least 40 volts negative at the control grid of the PL36. DFWB.