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

Philco 38-690 electronics restoration.
#61

Icon_clap Icon_clap Icon_thumbup Icon_thumbup

See, I am still saying the same thing three years later! Icon_lol The facts do not change...

--
Ron Ramirez
Ferdinand IN
#62

Ron


Oh, thanks. I found your post from 2014 and posted it, then saw your reply Icon_smile.

The only thing is, the original transformer has the fuse holder.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#63

   

Can't catch a break.
As I also need the tweeters connected I took them off.
The cones aren't good. Though electrically both are ok. One is patched and one is warped - likely water.

Well, after the power-up with no sound......the interstage transformer is also shot. Also the primary. Open.
(More sighs here).

This is in addition to some  sipping under the vanity in the powder room and the Schrader valve from my rear passanger wheel having cone off together with the cap when I tried to check the pressure in it. No inflating that one.

When it rains, it pours, and the frogs get strangled. Icon_smile

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#64

Well, it's official: need to rewind two transformers.
The Output and the Interstage. Both have bad primaries.

I think I'll bother Heyboyer.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#65

is the PP xfrmr you mentioned earlier somewhat universal?

also, on your other transformers you are going to rewind,,, is your primary on the outside ?
#66

Yes, it is universal - I even thought of yanking it out of the clam shell and trying to fit it into the original hardware (the mount holes are just 1/8" or so farther apart on it).

I am not sure about where the primary is on the interstage - it is fully encased and if I am to send it to Heyboyer, I'd rather they deal with it.

Member named Diverted rebuilt this one with Heyboyer in 2015.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#67

So....roughly speaking I am looking at:

1. re-coning all speakers (one tweeter may be more or less ok but it does have repairs and then if one is reconed and the other is not then there will be differences in the acoustic characteristics between them) - $40/ea, then the woofer recone - $75, obviously with shipping, which promises to be significant (large woofer, at least 10lbs by itself) - $200 guesstimated total.
2. Two Heyboyer jobs, possibly $170 plus shipping, roughly $200 guessed total.

$400 or so in extra expenses.
Well.....I got this one cheap! For a reason, now that I know it Icon_lol

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#68

morzh
I have a interstage transformer from a 37-116, Philco part number 32-7057n. Would this work for you. It reads o k with a ohm meter.
Joe

Joe Bratcher near Louisville, KY
#69

Joe,

It is super-kind of you to offer me that.
If it did, I'd decline as I have two spare chassis for 37-116 and it is likely at least one of them is good Icon_smile

But sadly, no, it won't fit as 37-116 has a simple interstage to drive two 6B4 or 6A5 and no tweeter output winding.
Not only that but to drive 6L6 you need different turn ratio from 6B4 anyway, this is why even 37-116 and 38-116 transformers are not interchangeable Icon_sad

Thanks very much anyway.

Mike.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#70

Shipped both transformers to Heyboer today.
We'll see how it goes from here.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#71

day late dollar short, found the transformers you needed from outside the forum.

Is it your intention to sell this radio when complete?
#72

No...it is not. At least so far I do not sell the radios I restore.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#73

Today will ship the speakers out. Put in in the trunk today, packed those speakers real well. Just the shipping is gonna cost me......

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#74

the speakers----just Drive them down to Collingswood,,,not far 1 hour ride
#75

I don't have that one hour during working days. And.....the total for the two boxes came out to $28. I will pay half that just for gas.
Plus 2.5 hrs of my time.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Zenith H725
Here's what the inside of AM IFT2 looked like, and the other pic shows the discs I made to take place of the mica and ke...EdHolland — 07:40 PM
Zenith H725
IF2 will need replacement caps. The arcing was severe enough that the mica is pitted and holed where the HT flashed over...EdHolland — 04:04 PM
My Philco 37-116 Restore
Measuring from center tap like the tube voltages show. Cap 127 is isolated from ground. Cap 127 shown in upper left of p...dconant — 08:05 AM
My Philco 37-116 Restore
Are you measuring relative to the centertap or the GND?morzh — 11:57 PM
Philco 610B oscillator wiring
Still not clear on the wiring interface between the 6A7 and oscillator. After refering to the available schematics and s...Tubester — 07:18 PM
Refinishing Ideas
My 37-116 code 121 is the best sounding radio i have...a daily driver. Since we are talking about "changes". ...poulsbobill — 07:18 PM
My Philco 37-116 Restore
Hello, I finally got brave enough to take the cans off the Expander Unit. Got the grid cap wires replaced and back toget...dconant — 06:50 PM
Zenith H725
I got into the first AM IF can today, and found its mica was cracked. Amazing that it was still working. This one makes ...EdHolland — 06:10 PM
Philco model #20
AHH HA , I got it and can’t thank you fellows enough , when I changed the capacitors I took the advice and did not unsol...onlyrick — 02:24 PM
Zenith H725
Hello Ed, yes, I like letting projects run for few days to make sure they don't start acting up . Sincerely Richardradiorich — 01:03 PM

[-]
Who's Online
There are currently 810 online users. [Complete List]
» 1 Member(s) | 809 Guest(s)
Avatar

>