Re: Hallicrafters S-107 Very First version...Not the MK1
|
toggle quoted message
Show quoted text
From: [email protected] <[email protected]> on behalf of Keith <kd4avp@...>
Sent: Tuesday, April 8, 2025 9:54 PM To: [email protected] <[email protected]> Subject: [HallicraftersRadios] Hallicrafters S-107 Very First version...Not the MK1 ?
Working to restore a S-107. This is the first version with the 6SC7 tube before they went to the 12AX7.
I can only find a schematic for the MK1 & 2 which use the 12AX7.
Someone has done a half hearted attempt at recapping this one and did the can cap conversion underneath.
While doing this, they took some liberties with the 680 and 1000 ohm (R37 & 38 I think) and replaced them with 2 of the 680 ohm 1 watt resistors.
But also found what I think is a 1 ohm carbon resistor between the rectifier and the 6K6GT.
I am not certain that is even correct or needed.
Have yet to find it on the MK2 schematic but I admit my ability to follow drawings is slow.
Could possible be overlooking it and not realize.
Would anyone by chance have a schematic of the S107 based on the 6SC7 tube??
|
waltcates
