B5X95A (Algemeen)

door Pandu Rajan @, 03.03.2023, 11:19 (392 dagen geleden)

Dear friends
How does the phase inverter work in the above radio set?

Regards
P.rajan

B5X95A

door castafiore2010 @, Winsum (Gn.), 05.03.2023, 09:51 (390 dagen geleden) @ Pandu Rajan

As far I understand what you mean, you suppose this radio has balanced end stages.
This however is not the case; each channel has only one single-end stage with only one EL84.

If this is not the desired answer to your question, please refine your question more in detail.

B5X95A

door Pandu Rajan @, 06.03.2023, 11:57 (389 dagen geleden) @ castafiore2010

Dear mr castafiore
This set has EL86 and EL84 in pushpull and ecc83 as the phase inverter.

Regards
P.Rajan

B5X95A

door Ron Kremer ⌂ @, Groningen, 05.03.2023, 10:59 (390 dagen geleden) @ Pandu Rajan

How does the phase inverter work in the above radio set?

The second half of the ECC83, B3', has a cathode and an anode resistor of equal value.
These are R17 and R29 respectively and they are 56k each, so this part of the ECC83 tube can
produce equal drive voltages but in antiphase to drive both the output tubes.

With kind regards, Ron

--
PA0RKG.....even if the plate glows red, the tube isn't dead !!

B5X95A

door Pandu Rajan @, 06.03.2023, 11:54 (389 dagen geleden) @ Ron Kremer

Dear mr Ron
Thanks your reply. What is the use of R24 and C68?

Regards
P.Rajan

B5X95A

door Andries van Dekken. @, Surhuizum, 07.03.2023, 12:00 (388 dagen geleden) @ Pandu Rajan

The meaning of these components in the circuit is probable prevention
against h.f oscillation.

regards Andrew

--
Keapje 'n Erres, kinne jo werres

B5X95A

door Sieme @, Niekerk, 07.03.2023, 15:17 (388 dagen geleden) @ Pandu Rajan

R24 in combination with R22 sets the dc gridlevel of the phasesplitter.
rgds,
Sieme

--
het experiment heeft altijd gelijk

B5X95A

door Pandu Rajan @, 08.03.2023, 11:33 (387 dagen geleden) @ Sieme

Dear mr Sieme
Thanks for you reply

Regards
P.rajan

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