EH Scott Radio Enthusiasts

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Norman S Braithwaite's Discussions

Toggle switches for Scott consoles

Started this discussion. Last reply by Brad Winder Jan 8, 2021. 9 Replies

Deep throat toggle switches for Scott and McMurdo Silver consoles available here...…Continue

Scott 800B for sale

Started this discussion. Last reply by john stafford Jun 19, 2015. 1 Reply

I have been contacted by Marcus  McCoshum of Santa Rosa and he wants to sell a much better than average condition Scott 800B receiver in the Chippendale console and with the original Thorens CD-40…Continue

Philharmonic Record Scratch Suppressor Circuit

Started this discussion. Last reply by Scott Seickel Mar 29, 2015. 2 Replies

In the process of restoring the Warsaw custom Philharmonic I learned that the record scratch suppressor circuit was not working.  With the help of Bill Liers I was able to fix the circuit but the…Continue

Philharmonic UHF band circuit variations

Started this discussion. Last reply by David C. Poland Jan 12, 2015. 12 Replies

While in the process of restoring a remote Philharmonic tuner chassis and comparing to a parts remote tuner chassis, I have discovered a major circuit change in the UHF RF circuits.  Unlike as shown…Continue

 

Norman S Braithwaite's Page

Latest Activity

Norman S Braithwaite replied to Kent King's discussion Scott serial numbers
"But your set is a Philharmonic?  It may be better to ask questions like this in a new thread.  The prior discussion here was about an AW-23.  Ideally all discussion in this thread should be related to serial number only.  Other…"
Feb 19
Norman S Braithwaite replied to Kent King's discussion Scott serial numbers
"The date stamp is likely a factory inspection date before shipment.  That would make your set a very late manufacture AW-23.  Can you post a photo showing more of the chassis where the capacitor is located?  That will help us identify…"
Feb 19
Norman S Braithwaite replied to jonathan dollimore's discussion Problem with Philharmonic.
"The "audio diode" is actually a pair of coils tuned to the IF frequency and providing the audio signal and AGC voltage from the diodes in the 6B8G tube.  The diode(s) are actually in the tube!  The component would have been…"
Feb 19
Norman S Braithwaite replied to jonathan dollimore's discussion Problem with Philharmonic.
"The resistors were run through holes in the shield to maximize shielding of the diode coil.  There are wax-paper capacitors inside the diode shields.  They need to be replaced.  The resistor that failed most likely did so because a…"
Feb 11
Norman S Braithwaite replied to jonathan dollimore's discussion Problem with Philharmonic.
"Simple.  Energy received at the antenna.  Scott receivers will pick up strong signals even when the IF amplifier is well out of alignment but will be noisy and not receive more distant signals well. Norman "
Feb 8
Norman S Braithwaite replied to jonathan dollimore's discussion Problem with Philharmonic.
"Perhaps.  You should check the variable selectivity rotors.  At some point during expansion of the pot metal collars the rotor will come fully loose from the variable selectivity shaft and rotate to a point that gravity dictates rather…"
Feb 7
Norman S Braithwaite replied to jonathan dollimore's discussion Problem with Philharmonic.
"If voltages are reasonable, the IF alignment is a prime suspect for the symptom you describe.  Has the set been aligned and recently checked?  Are the variable selectivity rotors well secured to the variable selectivity shaft?  Pot…"
Feb 7
Norman S Braithwaite replied to jonathan dollimore's discussion Philharmonic with Capehart 16e
"Working Capehart 16E changers are worth around US $500.  However, installed in a custom console with a Scott Philharmonic the combination of receiver, changer, and cabinet may be of greater value than the sum of receiver and changer values,…"
Jan 28
Norman S Braithwaite replied to Jay Forbes's discussion Philharmonic -- AC uA Meter
"Use of a meter for aligning the IF amplifier is good for peak alignment at the narrow bandwidth position. Balancing the bandpass aprons to prevent the need to retune can be accomplished with a meter but will be difficult and time consuming. Sweep…"
Jan 17
Norman S Braithwaite replied to Jay Forbes's discussion Philharmonic -- AC uA Meter
"Retuning from broad to sharp is expected.  Vise-versa is not normal.  It is an indication that the aprons of the IF bandpass characteristic are not balanced.  However, minor retuning is not an indication of the problem you are…"
Jan 15
Norman S Braithwaite replied to Jay Forbes's discussion Philharmonic -- AC uA Meter
"I haven't.  There is a bias potentiometer to compensate for change in gain when adjusting selectivity although it normally reduces gain when bandwidth is increased.  Check it.  After tuning in a station in the narrow bandwidth…"
Jan 14
Norman S Braithwaite replied to Jay Forbes's discussion Philharmonic -- AC uA Meter
"Yes, a DC meter is required.  Make sure the meter is working (connect to 1.5-volt battery through a 100,000-ohm resistor for 15uA), make sure the meter is connected with positive to chassis, and make sure the negative side of the meter is…"
Jan 14
Norman S Braithwaite replied to Jay Forbes's discussion Philharmonic -- AC uA Meter
"A DC microamp meter is identified in Scott literature for monitoring AGC voltage.  At the time the service data was prepared, a microamp meter was more accessible to service shops than a vacuum tube volt meter.  A vacuum tube volt meter…"
Jan 13
Norman S Braithwaite replied to John Chidgey's discussion Allwave 23 tuning meter
"The meter includes a magnet.  What is the nature of the problem?  Anemic meter operation in the AW-23 is usually related to IF alignment. Norman "
Jan 6
Norman S Braithwaite replied to douglas wright's discussion all wave 15 question
"There are two possibilities that can result in the 180-degree misalignment above the chassis.  One is that the phenolic water was removed and replaced out of phase and the other is that the bandswitch was rotated.  The former is more…"
Jan 5
Norman S Braithwaite replied to Jay Forbes's discussion Scott Philharmonic -- HiFi Control
"Confirmed.  Narrow ("selectivity") is full CCW and broad ("fidelity") is full CW.  The high fidelity (full CW) bandpass is 32-khz, well beyond anything useful today hence the recommendation to balance the bandpass…"
Jan 5

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Norman S Braithwaite's Blog

Carr Fire

Posted on August 1, 2018 at 11:41am 3 Comments

As some of you know, the Carr Fire has exacted a great toll in the City of Redding and surrounding area.  My house and half of my collection was the first visited by the fire in the devastated Lake Redding Estates neighborhood with no advance notice to evacuate and no fire trucks around.  Fortunately the house and collection were spared.  Unfortunately, however, I have learned that the house and collection of an acquaintance including several pre-war Scott receivers was lost and that another…

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Remote keyboard kits available

Posted on January 16, 2016 at 12:18pm 0 Comments

I am offering the remaining stock of incomplete Scott remote control keyboards being reproduced by the late Jim Schwalbe through the site accessible from the link below.

http://www.antiqueradios.com/forums/viewtopic.php?f=15&t=292211

If you are interested, I recommend that you place your order through that listing according to the rules of that site. If you try to order directly from me…

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Shielded Grid Wire

Posted on May 20, 2015 at 2:48pm 1 Comment

Shielded grid wire with cloth insulation is not easy to find but is an appropriate replacement for the shielded wire with rubber insulation (now failing) employed in many Scott models.  A roll of shielded grid wire with cloth insulation is currently being offered at the link below.…

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Comment Wall (10 comments)

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At 9:48pm on January 14, 2022, john a kim said…

HI !  Norman :   I  want  to  know  updated   David   Wolze   ph #

 to  fix   radio  ,   audio.    He  is  writer  of  VTV.

  Ph#  is not  working   in  repair man   directory   of   California  Historical

   radio  society.      john  kim   jong9988234@yahoo.com

At 10:20am on January 3, 2020, Maggie Yates said…

I posted pictures

At 2:56pm on August 28, 2019, Maggie Yates said…

I posted half dozen pictures of it

At 12:21pm on August 1, 2018, David C. Poland said…

Norman, glad you personally are OK. Threats from fire are unnerving.

At 9:39am on October 6, 2016, Bill De Rycke said…

Mighty glad to become a member of this organization.  I look forward to many conversations in the near future.  Currently I'm working with Bill Bryan to find an A.W. 15 to add to my collection.  Incidentally, Norm you have been invaluable at helping me with my A.W. 23 and A.W. 12, dual dial and thank you for the invite.

At 2:10pm on February 24, 2011, Michael Francis Miller said…
Thank you so much Norman.  That's a big help.
At 10:20pm on November 14, 2010, John Millner said…
Thanks Norman. I am pleased to know that the cabinet is original to the radio. John
At 9:53pm on November 14, 2010, John Millner said…
Norman, I also meant to include a closeup of the controls area. John


At 9:51pm on November 14, 2010, John Millner said…
Thank you for the welcome Norman. Attached (hopefully) is a picture of the cabinet & speaker.

John


At 4:37pm on August 31, 2009, Paul Squires said…
That's how sad that screwup made me feel.

Better than some of the celebrity mugshots I have seen. Kinda rivals Gary Busey's mugshot.
 
 
 

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