UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Help needed with

3pinplug · 10th Feb 2023, 10:15 pm

Hi Paula
Already conducted some of the measurements, results as follows:-
Pin15 (wire connected) no pulses, pin 7 IC4 no pulses

32-64 range TP9= 1705khz. TP10= 5.045khz
64-128 range TP9=1703khz. TP10= 5.043khz
128-256 range TP9 = 1700khz TP10= 5.044khz
256-520 range TP9 = 1699khz TP10= 5.045khz

Both the valves for TP9 and TP10 last digit fluctuating and sometimes changing 2nd to last digit.
Perform rest in morning👍

10th Feb 2023, 10:15 pm	#76
3pinplug Pentode Join Date: Jun 2016 Location: Kent, UK. Posts: 190	Re: Help needed with - Racal Dana 9081 Hi Paula Already conducted some of the measurements, results as follows:- Pin15 (wire connected) no pulses, pin 7 IC4 no pulses 32-64 range TP9= 1705khz. TP10= 5.045khz 64-128 range TP9=1703khz. TP10= 5.043khz 128-256 range TP9 = 1700khz TP10= 5.044khz 256-520 range TP9 = 1699khz TP10= 5.045khz Both the valves for TP9 and TP10 last digit fluctuating and sometimes changing 2nd to last digit. Perform rest in morning👍