EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Latest Activity

Norman S Braithwaite replied to jonathan dollimore's discussion wiring of tweeters on Philharmonic.
"OK, the only reason for large and small pins on the plugs for that version is to phase the tweeters correctly to the woofer.  The tweeters should work even if out of phase.  If they do not work, the culprit may be the 2-mfd crossover…"
23 hours ago
jonathan dollimore replied to jonathan dollimore's discussion wiring of tweeters on Philharmonic.
"Sorry Norman, I should have said: mine is a 30 valve  AM only model. "
yesterday
Norman S Braithwaite replied to jonathan dollimore's discussion wiring of tweeters on Philharmonic.
"It sounds like your Philharmonic may be the AM-FM version with the optional four unit speaker system (flush mount woofer, crossover chassis, and two tweeters). If this is the case, the tweeters are only active when the receiver is switched to FM. If…"
yesterday
jonathan dollimore posted a discussion

wiring of tweeters on Philharmonic.

I finally managed to acquire a set of tweeters for my Philharmonic. However they were missing the plug  that connects them to the main speaker via a two pin socket on the base of the latter. Now, tested on the bench the tweeters both work (relief....). However connected up to the main speaker they don't seem to - although its difficult to tell vis a vis the over-riding volume of the main speaker. But here's my specific query: the aforementioned plug and socket have one pin (plug) and hole…See More
yesterday
Norman S Braithwaite replied to Joe Miller's discussion Mods to Phillys
"Three resistors and a capacitor on one half of the 6H6 labeled sensitivity diode.  The schematic shows both halves of the 6H6 wired in parallel.  It will be real obvious if this is not the case.  Two of the sets have 50k, 120k, 2m and…"
yesterday
Joe Miller replied to Joe Miller's discussion Mods to Phillys
"Okay, If I run across any other deviations, I will point them out on this thread so everyone can see what I am finding. BTW, where should I look to find the Dickert noise suppressor since it isn't on the schematic? Thanks, Joe"
yesterday
Norman S Braithwaite replied to Joe Miller's discussion Mods to Phillys
"The bypassed 600-ohm resistor was not used in the RF AGC circuit.  Don't change everything to match the schematic.  The schematic contains numerous errors and does not show the Dickert impulse noise suppressor.  The noise…"
yesterday
Joe Miller replied to Joe Miller's discussion Mods to Phillys
"Thanks Norm, I installed a 680 ohm resistor and the bypass cap to make the set match the schematic.  The RF AGC circuit has a similar design, but I haven't got to it yet to see if the cathode is grounded or if the resistor scheme is…"
yesterday
Norman S Braithwaite replied to Joe Miller's discussion Mods to Phillys
"Joe:  That is a darn good question!  After inspecting the three Philharmonic tuner chassis I presently have upended, one remote early version being restored, one standard early version for parts, and one remote late version for reference,…"
yesterday
Joe Miller posted a discussion

Mods to Phillys

Were Philly's modified in later production runs without updating the schematic?I found the IF AGC tube's cathode grounded rather than connected to ground through a 600 ohm resistor with a bypass cap as shown on the Rider's schematic.Was this a factory change or the result of some one before me making changes?Thanks,JoeSee More
yesterday
Norman S Braithwaite commented on Ken Carr's photo
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Bass Choke Renewal

"I have been using pairs of .05 mfd capacitors in series or .027 mfd capacitors that test low in place of the .025 mfd capacitors.  Not knowing how sensitive the circuit is to component values or the difference in values (.02 for two and special…"
yesterday
David C. Poland commented on Ken Carr's photo
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Bass Choke Renewal

"Norm, my stock of .02 caps are rated .0233. That close enough? Or do you seek out combinations to maintain original values in this tone unit?"
yesterday
David C. Poland commented on Ken Carr's photo
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Bass Choke Renewal

"The Scott Sixteen has a similar unit with 4 caps inside. I dismounted it and used a cutting wheel in my Dremel Tool to cut open the back on 3 sides, to open a big flap like a doorway. Installed new caps with new pigtails matching the color of the…"
yesterday
Sam Galate replied to Andrew Myram's discussion Scott buy and sell?
"Hi Triet, I tried sending you some pictures, but it kept coming back to me. Do you have an alternate email I could try? Or you can email me at sgalate@att.net and I'll reply. Sam "
yesterday
Norman S Braithwaite commented on Ken Carr's photo
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Bass Choke Renewal

"The vertical mounted capacitors were originally special order 0.025-mfd, 400-volt capacitors.  EH Scott Radio Laboratories must have believed it was necessary to have the higher value. Norman"
Monday
Ken Carr commented on Ken Carr's photo
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Bass Choke Renewal

"Thanks for the comment and encouragement, David. I hope to do an inventory today and put through another order for capacitors. I'm still working out details of the circuit where someone else poked around. I am making progress. That box looks…"
Monday

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Forum

wiring of tweeters on Philharmonic.

Started by jonathan dollimore. Last reply by Norman S Braithwaite 23 hours ago. 3 Replies

I finally managed to acquire a set of tweeters for my Philharmonic. However they were missing the plug  that connects them to the main speaker via a two pin socket on the base of the latter. Now,…Continue

Mods to Phillys

Started by Joe Miller. Last reply by Norman S Braithwaite yesterday. 5 Replies

Were Philly's modified in later production runs without updating the schematic?I found the IF AGC tube's cathode grounded rather than connected to ground through a 600 ohm resistor with a bypass cap…Continue

Scott buy and sell?

Started by Andrew Myram. Last reply by Sam Galate yesterday. 6 Replies

Hello All,I'm new here. I'm wondering if there are any links or part of the site where buy, sell and trade ads exist for the EH Scott radios and parts?I have found two AW23s which I need to finalize…Continue

800b power transformer problem

Started by john stafford. Last reply by john stafford on Friday. 2 Replies

hi gentsi bought a 800b revised with 2 pin fm J5 and i thank the power trans is bad, 0 voltage at the 5y3 and no filament voltage i put a lamp in and nothing 20-100 watts,the transformer is clean and…Continue

Blog Posts

Bakelite knob for allwave 12 twin dial

Posted by Roy Johnson on October 21, 2014 at 4:43pm 0 Comments

Hi everyone,

                     I have just finished a restoration on am Allwave 12 Twin dial highboy but am missing one brown bakelite knob. If anyone has a spare for sale let me know.

                                               

                                                      Thanks,

                                                       Roy Johnson

The AW27

Posted by Kent King on October 16, 2014 at 8:55am 7 Comments

All...here is yet another one:

http://losangeles.craigslist.org/sgv/ele/4711884421.html



This makes the 18th AW27 set. In spite of this number (more of these exist than the pre-war FM tuner), there is no advertising, documentation or really anything on the "Baby-Q".



If you have any letters, documentation, an ad...if you have anything that might tell us more about the AW27,…
Continue

Question about original Scott owners.

Posted by John DeMajo on October 3, 2014 at 2:24pm 2 Comments

Hello,

I am new to the list.  Our museum (www.museumofyesterday.org) just acquired our first Scott receiver (an A-15 Metro)  for our communications collection, and I am currently involved in restoring it. Since these were custom built radios, I was wondering if there exists anywhere a serial number listing of E.H. Scott's original clients who purchased sets.

I would like to find out who originally owned the set that we just…

Continue

Westerly 23 tube Grand need some advice

Posted by Jim on September 25, 2014 at 6:22pm 1 Comment

hi new member here need some help and advice I have found a beautiful fully restored Scott Grand chassis and cabinet  my question what should I be looking at to spend for this set?? Any advice Thanks!!

 
 
 

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