Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

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

Instant gratification
#1

Love those good old AA5s. I just finished a Philco Model B569. The plainest of the plain, bottom of the line in 1954. Took a whole hour. 6 new caps, a good scrub of the cabinet and the knobs and she looks and plays like new. On to the next one ......

Keep one hand in your pocket
#2

Congratulations! Icon_thumbup

You are very lucky that the IF transformers are not suffering from silver mica disease; these sets can have the affliction since they use the 3/4" IF transformers.

--
Ron Ramirez
Ferdinand IN
#3

Ron,
What happens to those "unlucky" transformers, in case I run into the disease in future. I really like the table tops from the 50's for their imaginative cabinet shapes. I have limited space so I've reached my console limit and these are fun for me to work on.

Keep one hand in your pocket
#4

And have you noticed that even with a cheapie, basic AM tube set it sounds better on a station with a good signal better than a Walmart, maybe a Coby, special?
I have.

Paul

Tubetalk1
#5

Paul P,
Yes it does. I thought maybe I was listening with nostalgic ears, but It does sound fuller than I expected.

Keep one hand in your pocket
#6

They can be fixed, Philament. There are procedures on how to do this in various places around the Net. The biggest concern is finding the proper values of mica capacitors to use as replacements for the old, bad mica wafers inside the IF cans. Usually involves measuring the wafers with a capacitance meter if the capacity isn't marked on the schematic (and it usually isn't in the case of Philcos).

--
Ron Ramirez
Ferdinand IN




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Philco 60 Power Trans
Dan; I take it that you mean that the H.V winding reads 157 ohms on one side of the center tap, and 177 ohms on the o...Arran — 07:00 PM
New find. 91X code 225
Hello, I have a Philco 91 code 121 (one speaker). I found more info here that might be of some help. Might want to fo...dconant — 06:42 PM
Philco 60 Power Trans
Hello, The HV winding on the trans is about 700 volts no load. My meter (Fluke 115) only reads to 650 volts so I meas...dconant — 04:18 PM
New find. 91X code 225
Thanks all. To be honest I don’t know what to make of it being in this cabinet style but I like it a lot. I specifically...pdieten — 12:47 PM
New find. 91X code 225
Nice grab! It appears to be a 19X cabinet. This wasn't unusual. Philco often retrofitted to other cabinets as invento...GarySP — 12:32 PM
1949 Motorola 5A9M
I would certainly write down step-by-step the progression of disassembly of the works, and probably cuss out the electri...GarySP — 12:18 PM
New find. 91X code 225
Nice looking! This annotated schematic from our library shows parts that are slightly different in the early and later ...klondike98 — 11:33 AM
1949 Motorola 5A9M
LOL!! Well Arran, if you do dive into it and come across any advice on dealing with accessing components let me know. I...klondike98 — 11:56 PM
1949 Motorola 5A9M
Bob and Gary; I have the further complication on the Phillips that they decided to use some 200 volt rated paper caps...Arran — 10:05 PM
1949 Motorola 5A9M
Thx Arran & Gary. Yes its super crowded in the chassis and I've debated whether to try to restuff caps or not. I t...klondike98 — 07:40 PM

[-]
Who's Online
There are currently no members online.

>