[Hallicrafters] Hallicrafters Digest, Vol 121, Issue 7

Langston, Mike MLangston at pricegregory.com
Sat Feb 8 18:30:31 EST 2014 

I had this exact problem (except at the low end of the band) on an HQ-180A. Advise from the Glowbug list led me to change the Local Oscillator tube (which checked fine on a tester) and that was the problem. 

My SP-400SX does the same on the low end of the highest band (20-40 MHz). I get signals from about 25 and up. 15 meters is nada. LO is a 6J7. I have made one swap with no improvement but they tell me it may take several tries to get a tube that will stay in oscillation across all desired freqs.

Let us know how it goes.

Mike KL7CD

Sent from my iPhone

> On Feb 8, 2014, at 5:20 PM, "Wayne Light" <bud7388 at yahoo.com> wrote:
> 
> Hello all... I hope someone can offer me some guidance, since I've spent way too much time unsuccessfully trying to figure this out on my own.
> 
> I am almost finished restoring a beautiful Hallicrafters SX-99 (including replacing all caps, etc.). It works great on bands 1-2-3; but band 4 only partially works. The low end of the band works fine but as you tune higher it goes dead. Specifically, on Band 4, below around 15 MHz, it works perfectly. But, at about 15 Mhz (and above) it does not receive (from around 15 to 30 Mhz.). ... at these higher frequencies the receiver has normal background noise but will not pick up anything from my signal generator (or antenna).  I didn't pay much attention to this receiver's performance before I started the restoration and don't know if this problem was the result of my restoration. Since it works well while tuning across the other bands (the entire band), my thinking is that this should not be a Tuning cap. problem... But maybe I'm wrong.
> 
> Any ideas?
> 
> bud7388 at yahoo.com
> 
> Thanks, Wayne
> 
> 
> 
> On Saturday, February 8, 2014 10:18 AM, "hallicrafters-request at mailman.qth.net" <hallicrafters-request at mailman.qth.net> wrote:
> 
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> Today's Topics:
> 
>   1. RCA Radiola Knob (Larry Young)
>   2. Re: RCA Radiola Knob (rbethman)
>   3. Original equipment manuals available (hwhall at compuserve.com)
>   4. Re: RCA Radiola Knob (Joe Connor)
>   5. Wanted T/R RELAY FOR SR-400 (Walt Cates)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 7 Feb 2014 09:57:59 -0800
> From: "Larry Young" <larry112249 at mindspring.com>
> To: "'hallicrafters list'" <hallicrafters at mailman.qth.net>
> Subject: [Hallicrafters] RCA Radiola Knob
> Message-ID: <002e01cf242e$23b56620$6b203260$@com>
> Content-Type: text/plain;    charset="us-ascii"
> 
> Non-Hallicrafters Oriented, but....
> 
> 
> 
> Has anyone a knob, single knob for an RCA Radiola 16?
> 
> 
> 
> This is the knob on the left and operates a rheostat or current adjusting
> coil. It is a Bakelite with metallic center and set screw... it is not a
> push on as in the Radiola 17 or other. The photo below is from a seller, but
> he fails to show the underside and they are $50 the pair!
> 
> 
> 
> This was a "free" radio, it will not be a $50+ radio.
> 
> 
> 
> 
> 
> 
> 
> Larry Young
> 
> Ventura
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Fri, 07 Feb 2014 13:00:52 -0500
> From: rbethman <rbethman at comcast.net>
> To: hallicrafters at mailman.qth.net
> Subject: Re: [Hallicrafters] RCA Radiola Knob
> Message-ID: <52F51F54.8090708 at comcast.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> Larry,
> 
> This list doesn't support attachments.
> 
> Post a link to the picture.
> 
> Bob - N0DGN
> 
> 
>> On 2/7/2014 12:57 PM, Larry Young wrote:
>> Non-Hallicrafters Oriented, but....
>> 
>> 
>> 
>> Has anyone a knob, single knob for an RCA Radiola 16?
>> 
>> 
>> 
>> This is the knob on the left and operates a rheostat or current adjusting
>> coil. It is a Bakelite with metallic center and set screw... it is not a
>> push on as in the Radiola 17 or other. The photo below is from a seller, but
>> he fails to show the underside and they are $50 the pair!
>> 
>> 
>> 
>> This was a "free" radio, it will not be a $50+ radio.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> Larry Young
>> 
>> Ventura
>> 
>> 
>> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Fri, 7 Feb 2014 13:15:44 -0500 (EST)
> From: hwhall at compuserve.com
> To: hallicrafters at mailman.qth.net, milsurplus at mailman.qth.net,
>    boatanchors at mailman.qth.net, arc5 at mailman.qth.net,
>    national at mailman.qth.net, test-equipment at mailman.qth.net
> Subject: [Hallicrafters] Original equipment manuals available
> Message-ID: <8D0F247C074AAEE-16D0-B25C at webmail-m131.sysops.aol.com>
> Content-Type: text/plain; charset="us-ascii"
> 
> All,
> 
> K0KE has a box of old manuals from a silent key's estate. He's had them awhile and would like to get them into the hands of folks who need them. He's only looking for reimbursement of the cost of the large envelopes and postage. Contact him at k.r.ericson at att.net. Here's the list of the manuals:
> 
> 32V-1 schematic xmtr
> Autek QF-1 audio filter
> B&W 5100 schematic xmtr
> B&W GDO 600
> BC779/SP200 Gen Cov rcvr
> CDE Ham II rotor
> Collins 180S-1 ant tuner schematic
> Collins 75A-4 rcvr
> Collins R388 rcvr schematic
> Drake AC-4 power supply
> Drake MN4C matchbox (LP)
> Elmac AF 67 xmtr
> Elmac PMR-7 rcvr
> FL-8 Audio filter
> Globe Scout 65-B schematic xmtr
> Hallicrafters S-19 Sky Buddy rcvr
> Hallicrafters SP44 Panoramic analyzer
> Hallicrafters SX101 Mark III rcvr
> Hallicrafters SX71 rcvr
> HRO-50 rcvr
> HT-32 xmtr
> Invader 2000 xmtr
> KWM-2/2A schematic
> Lafayette 410 10m xcvr
> Lafayette HE 61A 6m vfo
> Meissner Sinal Shifter VFO schematic
> Millen 90801 xmtr
> Millen GDO 90651
> Millen KW Transmatch 92200
> Morrow CM-1 Conelrad rcvr
> Morrow MB560 xmtr schematic
> RCA 77-DX microphone
> RME VHF 2-11 rcvr
> Shure 55 mic
> Sierra Model 164 wattmeter
> Swan 700 CX xcvr schematic
> Sylvania Mod Meter
> TMC GPR-90 rcvr
> Valiant schematic xmtr
> Viking 122 VFO? (2)
> Viking II schematic xmtr
> 
> Wayne
> WB4OGM
> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Fri, 7 Feb 2014 10:51:18 -0800 (PST)
> From: Joe Connor <joeconnor53 at yahoo.com>
> To: Larry Young <larry112249 at mindspring.com>,    'hallicrafters list'
>    <hallicrafters at mailman.qth.net>
> Subject: Re: [Hallicrafters] RCA Radiola Knob
> Message-ID:
>    <1391799078.60133.YahooMailNeo at web125503.mail.ne1.yahoo.com>
> Content-Type: text/plain; charset=us-ascii
> 
> Just from the pictures on-line, that knob looks similar, if not identical, to the knobs used on some of the later Radiolas. The issue may be that the Radiola 16 is relatively scarce, at least compared to the plentiful later models like the Radiolas 17, 18 and 60, so if the knob you need is the same as the knobs on these more plentiful later models, you'll have a better chance of getting one cheap.
> 
> Mike Koste is the guy to see for knobs. Scroll down the page on this link and you'll get his email address.
> http://www.philcoradio.com/resourcea.htm
> 
> 
> Another guy who might be able to help is Sonny Clutter. His webpage (w/contact info) is:
> http://www.radiolaguy.com/
> 
> 
> I hope this helps.
> 
> Joe Connor
> 
> 
> 
> On Friday, February 7, 2014 12:58 PM, Larry Young <larry112249 at mindspring.com> wrote:
> 
> Non-Hallicrafters Oriented, but....
>> 
>> 
>> 
>> Has anyone a knob, single knob for an RCA Radiola 16?
>> 
>> 
>> 
>> This is the knob on the left and operates a rheostat or current adjusting
>> coil. It is a Bakelite with metallic center and set screw... it is not a
>> push on as in the Radiola 17 or other. The photo below is from a seller, but
>> he fails to show the underside and they are $50 the pair!
>> 
>> 
>> 
>> This was a "free" radio, it will not be a $50+ radio.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> Larry Young
>> 
>> Ventura
>> 
>> 
>> 
>> ______________________________________________________________
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>> 
> 
> ------------------------------
> 
> Message: 5
> Date: Fri, 7 Feb 2014 13:41:22 -0600
> From: Walt Cates <cateswa at msn.com>
> To: hallicrafters <hallicrafters at mailman.qth.net>
> Subject: [Hallicrafters] Wanted T/R RELAY FOR SR-400
> Message-ID: <SNT151-W13A186E6673E4880108245B3970 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> I need a 12 vdc, DPDT, 325 TO 400 OHM, 5 TO 10 AMP CONTACTS, PREFERABLY OPEN FRAM, RELAY. The Hallicrafters # is 021-000862, the POTTER BRUMFIELD # IS KR-31422.
> 
> 73
> 
> Best Regards, Walt Cates, WD0GOF
> 
> GOD put you here because there is something no one else can accomplish.
> 
> 
> 
> 
> ------------------------------
> 
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> End of Hallicrafters Digest, Vol 121, Issue 7
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> 
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