philips: B5X14A/19 (B 5 X 14 A /19); Bi-Ampli-Rad EZ81 or

ID: 186920
? philips: B5X14A/19 (B 5 X 14 A /19); Bi-Ampli-Rad EZ81 or 
31.Mar.09 21:51
0

Paolo Pardi (I)
Articles: 3
Count of Thanks: 9

Hello,

 

I have a big problem! there's a missing tube, I suppose is a EZ81 but in schematic I saw an EZ80... but in another page of the schema (misc) there's a EZ81???!?! any suggestion?

thanks anyway.

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 2
? power up / power down 
02.Apr.09 18:34

Paolo Pardi (I)
Articles: 3
Count of Thanks: 12

Ho un'altro problema, mi è saltata la molla che aggiancia il bottone di accensione per permettere sia l'accensione sia lo spegnimento.

Cosa comune a queste radio, ma io proprio su questi particolari sono piuttosto carente!

se qualche anima "pia" mi potesse dare qualche suggerimento sarebbe certamente apprezzato (molto).

Grazie a chiunque.

 

Paolo

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 3
Rectifier type 
02.Apr.09 19:20

Emilio Ciardiello (I)
Editor
Articles: 533
Count of Thanks: 15
Emilio Ciardiello

Dear Paolo,

Both EZ80 and EZ81 have the same pinout and can be used. The difference is in the rectified current, higher for the second one, 150mA average versus 90mA. When using the EZ81, a longer life can be expected.

Regards, Emilio

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 4
? thank you 
02.Apr.09 19:59

Paolo Pardi (I)
Articles: 3
Count of Thanks: 8

Thank you very much Emilio!

sono nuovo alle valvole e non conosco bene questo mondo.

Mille grazie per la tua preziosa informazione!

 

Paolo

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This thread was moved automatically. 

This question was moved automatically to the board "Talk" to get more possibilities for answers.

moved from board »RADIO MODELS DISPLAYED« on 20.Apr.09 19:59 from automatically 

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Moved from board »* TALK - visible for members only« on 22.Apr.09 13:13 from Hans M. Knoll