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Philco 38-116 Code 121
#13

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"

Andy Sorrell
Palmyra, Virginia


Messages In This Thread
Philco 38-116 Code 121 - by AVSorrell - 02-16-2017, 01:05 PM
RE: Philco 38-116 Code 121 - by Mondial - 02-16-2017, 01:49 PM
RE: Philco 38-116 Code 121 - by Chris h - 02-16-2017, 02:29 PM
RE: Philco 38-116 Code 121 - by morzh - 02-16-2017, 04:26 PM
RE: Philco 38-116 Code 121 - by AVSorrell - 02-17-2017, 06:17 AM
RE: Philco 38-116 Code 121 - by Chris h - 02-18-2017, 11:02 PM
RE: Philco 38-116 Code 121 - by AVSorrell - 03-27-2017, 12:10 PM
RE: Philco 38-116 Code 121 - by Mondial - 04-02-2017, 02:24 PM
RE: Philco 38-116 Code 121 - by AVSorrell - 04-03-2017, 11:57 AM
RE: Philco 38-116 Code 121 - by Mondial - 04-03-2017, 04:52 PM
RE: Philco 38-116 Code 121 - by AVSorrell - 04-04-2017, 05:22 AM
RE: Philco 38-116 Code 121 - by Mondial - 04-04-2017, 08:48 AM
RE: Philco 38-116 Code 121 - by AVSorrell - 04-05-2017, 04:02 PM
RE: Philco 38-116 Code 121 - by Radioroslyn - 04-05-2017, 08:33 PM
RE: Philco 38-116 Code 121 - by Ron Ramirez - 04-06-2017, 11:39 AM
RE: Philco 38-116 Code 121 - by AVSorrell - 04-14-2017, 12:06 PM



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