Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

90 cathedral mershon questions
#1

Did the 90 come with the copper mershons?
Mine doesn't and most photos online dont but i have the chance to buy them.

Kirk

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6
#2

They came with mershons or sprague type, I've seen/had them with either or.
#3

I have seen them with "newer mershon-likes", the nickel-plated copper types.
#4

I think the nickel plated ones are sprague.
#5

Thanks,
I bought them and the side shield off a 91. Will they fit?
My 70 also has them but one is copper and one is not. 1 was replaced right?
so putting in the copper will make it original to the 70 also?

Here is my 90 and 70 chassis:


Attached Files Image(s)
       

Times I have been electrocuted in 2021
As of 1/01/2021
AC: 4 DC: 1
Last year: 6
#6

The left one is clearly a replacement. Many of them have it like this.
#7

If you ever restuff the sprague caps in the 90, rather than cutting it into two pieces, pop out the top plug with the two holes in it, reem the hole out underneath, then you can gut it with thin needle nose pliers, drill a small hole under the nut at bottom and another to solder under the cap for your new electrolitic. Just like the thread for the mershon restuffing shows.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Cannot Adjust an IF Transformer’s cores
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM
PT-6 antenna connections
I seem to have lost my way on this PT-6. I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM
40-150 General questions
Good thing you're a good electrician ... the pictures show a lot of rewiring in your future! Take care and BE HEALTHY!...GarySP — 11:52 AM
40-150 General questions
I think RobB has it right. It is a part number and looks like its stamped on the chassis and that wasn't something you ...klondike98 — 11:41 AM
40-150 General questions
It's most likely a part number. Most of Philco part numbers are in that format. I looked at the parts list for this mode...RodB — 08:10 AM
40-150 General questions
Hi Kevin, No, I don't but I like your Quote about being a good electrician. The way I look at it is "The fact ...MrFixr55 — 08:06 AM
Philco 38-7 Speaker
7K should be fine. While not a perfect match (This transformer is meant for 6V6 tubes), Antique Electronic Supply (AES)...MrFixr55 — 08:03 AM
40-150 General questions
I discovered a stamp on the underside of the breadboard on my Philco 40-150. It is"56-1417' in black ink with numbe...Kevin_D — 07:14 AM
Philco 38-7 Speaker
FYI the Impedance of the HR20 (the one I have) secondary of the audio transformer is 5 ohms. The 38-7XX speaker is suppo...tludka — 04:22 PM
Philco 38-7 Speaker
Yeah, don't use the transformer currently on the H-20 (Dopf, I thought "H20, is that new technology, a speaker usin...MrFixr55 — 03:51 PM

[-]
Who's Online
There are currently 2738 online users. [Complete List]
» 2 Member(s) | 2736 Guest(s)
AvatarAvatar

>