|
|
|
|
|||||||
| Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
 |
|
|
Thread Tools |
4th Feb 2021, 11:36 am
|
#61 |
|
Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,433
|
Re: 1951 radio " Graetz Super 158W " serious sound problem
Pentode section
Anode ECH42 262v 3 ma G2 (screen grid) 60v 3.5 ma
__________________
Frank Last edited by Nuvistor; 4th Feb 2021 at 11:43 am. |
|
|
4th Feb 2021, 9:00 pm
|
#62 |
|
Pentode
Join Date: Oct 2019
Location: Nicosia, Cyprus.
Posts: 165
|
Re: 1951 radio " Graetz Super 158W " serious sound problem
Fixed !!!!
 2 resistors was out of value. The problem was fixed when i replaced the 200K resistor (number 123, schematic from radiomuseum). It was 380K !!! In my home i had 180k and 220k so i preferred the 180k until to find the correct one. The second out of value was the number 116 (schematic from radiomuseum). The original was 5M but i find him to he 6M. This was replaced with 5.5M and soon i will get the correct ones. The result is that the radio works perfectly now !!! Thanks for your patience and your advices guys. As i wrote yesterday the radio and me, we really thank you. Without your contribution this project would not have a happy end... |
|
|
