04-05-2017, 03:02 PM
Hi Phorum -
Mondial - thanks for the idea about using the choke. I have added the connection to the elctro cap on 80B. I have good news from Heybour whom I am checked with to recreate my audio interstage driver transformer (part number is 32-7865) in my 38-116, Code 121 which has an open primary. On the code 121 it is part # 117 and on the code 125 it is # 102 on the parts listing - so it works in codes 121 or 125.
Mondial has been very helpful as I developed a plan B if I could not find a transformer from a junker or one from Heybour. After talking with Heybour they will be able to recreate the transformer. They offer a price break for the additional transformers if I order more than one. So - do any of you need a audio interstage driver transformer like mine? If I order just the one I need, it is $50. If I want two or three the cost is $40 for the additional ones. So, if you need one, I can order it and you can pay me back the $40 - saving you $10 off the normal cost. Let me know ASAP as I will be placing order order tmw, Thursday 4/6.
Below are the specs I provides to them from a 1940 Philco parts listing:
audio interstage driver transformer that goes from the plate of a 6J5 tube to the grids of 2 6L6 tubes. (single plate to dual grid). Type 5 mounting style (I attached a photo showing the locations of the A, B, C measurements). Note that says: "Section # 1 and # 2 in series" and I attached a photo showing the winding diagram. I did not know the wire gauge, but I told them I thought perhaps # 40 or 41. The weight of it out of its shell was 14.7 oz. It has 6 wires coming from it.
Primary DC resistance: 400 ohms
secondary # 1 DC resistance: 175 ohms
secondary # 2 DC resistance: 150 ohms
Driver: one 6J5 tube
Output: two 6L6 tubes
Turn ratio: 1.2:1
Primary M.A.: 8
Size: A (height): 2 13/32" B: 2 7/8" C(coil width): 1 7/8" (references a picture I attached)
Mounting Holes: 2 3/8"
Core Width: 2"
Mondial - thanks for the idea about using the choke. I have added the connection to the elctro cap on 80B. I have good news from Heybour whom I am checked with to recreate my audio interstage driver transformer (part number is 32-7865) in my 38-116, Code 121 which has an open primary. On the code 121 it is part # 117 and on the code 125 it is # 102 on the parts listing - so it works in codes 121 or 125.
Mondial has been very helpful as I developed a plan B if I could not find a transformer from a junker or one from Heybour. After talking with Heybour they will be able to recreate the transformer. They offer a price break for the additional transformers if I order more than one. So - do any of you need a audio interstage driver transformer like mine? If I order just the one I need, it is $50. If I want two or three the cost is $40 for the additional ones. So, if you need one, I can order it and you can pay me back the $40 - saving you $10 off the normal cost. Let me know ASAP as I will be placing order order tmw, Thursday 4/6.
Below are the specs I provides to them from a 1940 Philco parts listing:
audio interstage driver transformer that goes from the plate of a 6J5 tube to the grids of 2 6L6 tubes. (single plate to dual grid). Type 5 mounting style (I attached a photo showing the locations of the A, B, C measurements). Note that says: "Section # 1 and # 2 in series" and I attached a photo showing the winding diagram. I did not know the wire gauge, but I told them I thought perhaps # 40 or 41. The weight of it out of its shell was 14.7 oz. It has 6 wires coming from it.
Primary DC resistance: 400 ohms
secondary # 1 DC resistance: 175 ohms
secondary # 2 DC resistance: 150 ohms
Driver: one 6J5 tube
Output: two 6L6 tubes
Turn ratio: 1.2:1
Primary M.A.: 8
Size: A (height): 2 13/32" B: 2 7/8" C(coil width): 1 7/8" (references a picture I attached)
Mounting Holes: 2 3/8"
Core Width: 2"
Andy Sorrell
Palmyra, Virginia
