EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

mike hadley
  • Hitchin
  • United Kingdom
Share on Facebook

Mike hadley's Friends

  • Fran Mayer
  • Troy Taylor
  • Robert Feenstra
  • Brad Winder
  • Matt Endicott
  • Jon Ketron
  • Russ Webb
  • Joseph W Strickland
  • jonathan dollimore
  • Auroraoldradios
  • Scott Seickel
  • David C. Poland
  • Norman S Braithwaite
  • Kent King

mike hadley's Discussions

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

Scott logo

Started this discussion. Last reply by Jon Ketron Aug 7, 2019. 3 Replies

Can anyone please help,I need a fairly good photo of the Scott logo from the rear of a speaker, the idea is to reproduce the artwork and make it available on this site,thanks in advance.MikeContinue

philharmionic bezel spring

Started this discussion. Last reply by David C. Poland Jan 11, 2019. 2 Replies

The dial bezel on my philly had tarnished to a dull brown, and the glass locking spring had rusted in position, this proved quite difficult to remove, after working at the old spring with a pick I…Continue

Gifts Received

Gift

mike hadley has not received any gifts yet

Give a Gift

 

mike hadley's Page

Latest Activity

mike hadley replied to John Chidgey's discussion Suggestions for repairing cloth cover
"Hi John, I have used this stuff in the past, color with rit, looks like the genuine thing when done https://www.ebay.co.uk/itm/Cotton-Cover-Cable-Wire-Tube-Sleeve-Textile-Fabric-4mm-6mm-8mm-16mm-Protective/332311666213?var=541317488916 sorry…"
yesterday
mike hadley replied to John Chidgey's discussion Philharmonic refinishing resource
"The cap box is potted with pitch, after cutting the bottom open the contents can be dug out, it's fairly easy as it's mostly paper capacitors, if you are really fussy you can remove the pitch remnants with wd40 and a final rinse with…"
Jul 24
mike hadley replied to John Chidgey's discussion Philharmonic refinishing resource
"stuffing a tin box, Seven caps are .5mfd 600v polypropylene"
Jul 23
mike hadley replied to John Chidgey's discussion Warrington cabinet wood trim
"If you can get hold of the file, or a high res image and what lumber it's made from I would be more than happy to laser cut them for you,"
Jun 15
mike hadley replied to John Chidgey's discussion Warrington cabinet wood trim
"Do you have a photo of the cabinet? would help to identify the part you want. Mike"
Jun 15
mike hadley replied to Kent King's discussion FM Tuner problem
"Have you put a scope on the tube to see if it's unstable and possibly oscillating, I take it you have already swapped the tube, have you checked the transformers etc, or even the wire positioning. Had an audio amp once and the plates glowed…"
Jun 14
mike hadley replied to Richard Groman's discussion tweeter plug
"If you intend to use an old tube base, after breaking out the old glass, soak the base in denatured alcohol for a few hours or overnight, this will soften and dissolve the old cement that held the glass bulb in situ, leaving a nice clean socket. I…"
May 20
mike hadley replied to Kent King's discussion Allwave Type 150 amplifier
"Wow, very pretty, Nice job Kent."
May 19
mike hadley replied to Troy Taylor's discussion Modified Allwave 23 questions
"Nicely done, and no modification to the radio."
May 4
mike hadley replied to Troy Taylor's discussion Modified Allwave 23 questions
"Troy; You could remove the 76 tube completley and make up a plug to fit the socket, as all of the signals are there. All you would need to find is a chassis point for the eye tube cathode, completely reversable with no modification."
Apr 30
mike hadley replied to Troy Taylor's discussion Modified Allwave 23 questions
"I did a small writeup on the two tubes a while ago, it's here https://ehscott.ning.com/forum/topics/6g5 the 6G5 has a greater negative bias on the grid for full shutoff Mike"
Apr 30
mike hadley replied to Jiri Placek's discussion How to select non-noisy tubes?
"Most of the cheaper tube testers have a provision for an earphone to check for microphony, I have an old RCP tester that has this facility, really crude, let the tube warm up and give it a gentle flick of the finger, and you can hear how good or bad…"
Mar 29
mike hadley liked Robert Feenstra's discussion Philly BOL Schematic
Mar 29
mike hadley replied to Robert Feenstra's discussion Philly BOL Schematic
"Congrats Rob, nicely done, you now have a problem, nothing else will compare to your philharmonic, they do sound superb. I have an old auto fm to am converter running on mine, modern FM sounds really nice, you can tell it's not an am…"
Mar 29
mike hadley replied to Robert Feenstra's discussion Philly BOL Schematic
"I bought this after I finished the assembly of my philharmonic, the radio is an early chassis matched to a late amp (jones sockets) the tweeters were for fm use and switched off for am, I did install a couple of 8ohm tweeters wired in series through…"
Mar 28
mike hadley replied to Robert Feenstra's discussion Philly BOL Schematic
"Rob; Here is a photo of the crossover I have, it's stamped on the bottom 6KHz, that may be the crossover frequency? and here is the Schematic I hope that this is of some use."
Mar 28

mike hadley's Photos

  • Add Photos
  • View All

Comment Wall (2 comments)

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.
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

You need to be a member of EH Scott Radio Enthusiasts to add comments!

Join EH Scott Radio Enthusiasts

 
 
 

© 2020   Created by Kent King.   Powered by

Badges  |  Report an Issue  |  Terms of Service