UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Becker Brescia autoradio with seeking station.

Osvaldo LW1DSE · 1st May 2022, 5:50 pm

Ok. Yes, in my pet the output stage is inside the vibrator power supply: EL84, matching transformer and coulpling network to EABC80's triode plate. The cathode biasing net of the EL84 doesn't return to ground directly but though secondary of the OT giving some few dB of negative feedback. The secondary has a tap, perhaps to accept 4 or 8 ohms speakers. The entire secondary is used to perform NFB. As a comment, there are two unused holes of the size of two new absent sockets. So, I suppose that it can accept another EL84 and (perhaps) a phase splitter to make a pushpull stage.

Can anyone say me how to upload a video of say, 30 sec showing my pet performing?

Many thanks in advance.

1st May 2022, 5:50 pm	#7
Osvaldo LW1DSE Tetrode Join Date: Jan 2022 Location: Barrio Garay, Almirante G. Brown, Buenos Aires, Argentina Posts: 76	Re: Becker Brescia autoradio with seeking station. Ok. Yes, in my pet the output stage is inside the vibrator power supply: EL84, matching transformer and coulpling network to EABC80's triode plate. The cathode biasing net of the EL84 doesn't return to ground directly but though secondary of the OT giving some few dB of negative feedback. The secondary has a tap, perhaps to accept 4 or 8 ohms speakers. The entire secondary is used to perform NFB. As a comment, there are two unused holes of the size of two new absent sockets. So, I suppose that it can accept another EL84 and (perhaps) a phase splitter to make a pushpull stage. Can anyone say me how to upload a video of say, 30 sec showing my pet performing? Many thanks in advance. Attached Thumbnails __________________ Enjoying high heel sandals, shoes or boots when I can. Last edited by Osvaldo LW1DSE; 1st May 2022 at 5:58 pm.