EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

mike hadley
  • Hitchin
  • United Kingdom
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mike hadley's Discussions

re cone a phantom speaker

Started this discussion. Last reply by David C. Poland Mar 23. 2 Replies

I have a Magnavox speaker from a Scott phantom to repair,it is fitted…Continue

Making a field coil speaker

Started this discussion. Last reply by mike hadley Jun 13, 2021. 3 Replies

After rebuilding both permanent magnet and field coil speakers the next step for me was to build a field coil speaker from the bottom up,besides there is an awful lot of radios out there without the…Continue

30 into 23 will go

Started this discussion. Last reply by Thomas Day Sep 24, 2019. 3 Replies

I thought that I would like to share the last installment of my Philharmonic,the cabinet started life as an Allwave 23 Tasman, but the radio has sadly long gone, and there was some horrible…Continue

Mcmurdo silver masterpiece v

Started this discussion. Last reply by mike hadley Aug 9, 2019. 4 Replies

Can anyone please help,I have recently managed to get my hands on a masterpiece v, but unfortunately someone in the past has removed the bass boost inductors from the output of the expander circuit,…Continue

 

mike hadley's Page

Latest Activity

David C. Poland replied to mike hadley's discussion re cone a phantom speaker
"Nice presentation. That same speaker is used for the Scott model Sixteen and the 14 tube Scott Masterpiece and 19 tube Phantom (NOT 20 tube Phantom DELUXE, nor FM Phantom Deluxe). It uses a curved cone. Octal plug. It has two field coils - one…"
Mar 23
Brad Winder replied to mike hadley's discussion re cone a phantom speaker
"Awesome tutorial Mike! I have started to learn to re-cone speakers, having done three smaller ones so far. Two turned out well...one not so good. But I will keep trying, and use a couple of your tips. :)"
Mar 22
Brad Winder liked mike hadley's discussion re cone a phantom speaker
Mar 22
Scott Seickel liked mike hadley's discussion re cone a phantom speaker
Mar 22
Fran Mayer liked mike hadley's discussion re cone a phantom speaker
Mar 22
mike hadley posted a discussion

re cone a phantom speaker

I have a Magnavox speaker from a Scott phantom to repair,it is fitted with a HF dispersion cone that will have to be removed, this is done by undoing the screw and washer that holds it to the pole piece. Looking at the photo you can see that the…See More
Mar 22
Scott Dickson replied to mike hadley's discussion wooden knobs
"Very nice.  Wish I had your talent!"
Feb 14
mike hadley replied to John Chidgey's discussion VR NE42
"Hi John, Try ebay, there are two for sale at the moment, ebay No.185121023630 and 194221136216, postage is not cheap, Mike"
Oct 22, 2021
mike hadley replied to Forrest Wagner's discussion EH Scott Phantom Deluxe knobs
"I posted this a few years ago, but nit everyone has access to a lathe, https://ehscott.ning.com/forum/topics/wooden-knobs"
Aug 3, 2021
mike hadley replied to Forrest Wagner's discussion EH Scott Phantom Deluxe knobs
"Any chance of a photo?"
Aug 2, 2021
mike hadley replied to norman david warren's discussion Scott aw-15 speaker repair
"The speaker you have is desirable and repairable, to quote Dave, remove the heavy cast cover, the field coil is more or less a smoothing choke for the power supply and a transformer for the 2A3 bias, hopefully the wires are damaged and not the…"
Jun 29, 2021
mike hadley replied to mike hadley's discussion Making a field coil speaker
"Hi Brad, Cast baskets are fairly easy to find, I managed to pick up a dead cast 18" speaker yesterday from eBay for $10, there are cheaper Chinese stamped baskets available I did use one on a Stromberg Carlson a while back I would have been…"
Jun 13, 2021
Brad Winder replied to mike hadley's discussion Making a field coil speaker
"Wow! Amazing!  For a larger speaker, will you try to find a cast basket? Seems they would be super difficult to find, since by the time the large 12" and 14" speakers came out in the later 30's everyone seems to have moved to…"
Jun 13, 2021
Scott Seickel replied to mike hadley's discussion Making a field coil speaker
"Looks good Mike.  I was wondering what you were up to, you been too quiet. "
Jun 12, 2021
Scott Seickel liked mike hadley's discussion Making a field coil speaker
Jun 12, 2021
mike hadley posted a discussion

Making a field coil speaker

After rebuilding both permanent magnet and field coil speakers the next step for me was to build a field coil speaker from the bottom up,besides there is an awful lot of radios out there without the correct speaker, yes I could have repurposed a field coil speaker from another radio, but field coil speakers are beginning to get expensive, and in some cases the cost is prohibitive. I have used resistors in the past but not anymore. There is a good article called project Ryu, the author covers…See More
Jun 12, 2021

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Comment Wall (2 comments)

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At 6:29pm on February 28, 2020, mike hadley said…

Thom;

Thank heaven for Hammond, my Mcmurdo v had the tone stack hacked out, long before the set came into my possession, I ran the tone schematic through ltspice to get the inductor values, Mouser provided.

I now have accumulated parts to build the combined psu and amp, luckily I have enough bench supplies to prove the radio is working.

I quite often find that if you keep chipping away, rather than tearing into a project, it allows thinking time. This helps to find the best way around a problem.

And as you know I found a way around the seven pin socket problem for my Philly a while ago.

Mike

At 5:27pm on February 28, 2020, Thomas Day said…
Mike: Nice power supply. I can source a similar used Heathkit supply here on Ebay.
I worked for them from 1967 thru 1974. I left in 1975. Here, Hammond transformer company makes suitable transformers for tube equipment at reasonable prices. I also have several Hammond organ Leslie amplifiers that have a balanced input. Since I would also need 6.3 volts at 5 amps for the filaments, a complete transformer supply would be better. When I bought my Allwave 23, the one question I didn't ask was does it work? The answer as I found out was no. The power transformer had a shorted winding. Thru this list I was able to find a company in Michigan that could wind a new one. Took several months, and since we go the Muskegon Mi. in October, and the company is on the way, I was able to pick up the new one. Minor construction differences required a custom mount, but it works just fine. For my needs, I would only need the tuner B+ and -20 volts for the bias circuits. I would also need to source the 7 pin socket to match the tuner plug. Since it is different from the standard 7 pin, that could be hard to find. I enjoy your posts on restorations.
 
 
 

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