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Tech Talk

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Schematic Wanted - Calstan Triomatic Radiogram - model unsure
 MacGyver's Gravatar Started by: MacGyver at
3:22:05 PM on 15 December 2016
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Understanding Vintage speakers for Early Valve Models,,, Alnico etc etc
 Vintage Pete's avatar Started by: Vintage Pete at
10:22:37 PM on 13 December 2016
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Diagnose this recorded behaviour?
 Maven's Gravatar Started by: Maven at
12:01:40 PM on 13 December 2016
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Astor Mickey, unknown valves... What model? Help?!?
 JamieLee's Gravatar Started by: JamieLee at
2:34:05 AM on 10 December 2016
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Kriesler 11-92 portable radiogram
 JamieLee's Gravatar Started by: JamieLee at
7:48:15 PM on 8 December 2016
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Philips Radio Model Number?
 Zamiac's Gravatar Started by: Zamiac at
9:36:02 AM on 7 December 2016
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AWA PA-30B Public Address amplifier
 Simplex's Gravatar Started by: Simplex at
3:29:39 PM on 5 December 2016
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Service info for Dynatron wanted
 Scotty's Gravatar Started by: Scotty at
10:21:52 AM on 5 December 2016
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Using an op-amp 'rectifier' as an AM detector
 Wa2ise's avatar Started by: Wa2ise at
3:47:35 PM on 4 December 2016
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Looking for a component list for a Philips 352A
 Philconut's Gravatar Started by: Philconut at
10:29:13 AM on 4 December 2016
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The Isolation Transformer. How does it work ? And what is the best way to use it.
 Tallar Carl's avatar Started by: Tallar Carl at
7:19:34 PM on 2 December 2016
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Service manual for HMV required
 Scotty's Gravatar Started by: Scotty at
1:34:51 PM on 1 December 2016
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Signal fading when I touch antenna
 Tallar Carl's avatar Started by: Tallar Carl at
8:32:07 AM on 29 November 2016
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AGC - Automatic Gain Control
 JamieLee's Gravatar Started by: JamieLee at
3:15:00 PM on 27 November 2016
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Power supply for battery valve radios
 Ian Robertson's Gravatar Started by: Ian Robertson at
3:25:33 PM on 26 November 2016
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Philips Radioplayer 179 tuning issue
 Maven's Gravatar Started by: Maven at
3:50:49 PM on 24 November 2016
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STC Table Radio Model 54 not quite ???
 Jimb's Gravatar Started by: Jimb at
4:37:27 PM on 22 November 2016
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PYE Radiogram Circuit
 Themeebs's Gravatar Started by: Themeebs at
3:04:36 PM on 22 November 2016
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More work on making better SS AM detector diode circuits
 Wa2ise's avatar Started by: Wa2ise at
10:36:28 AM on 21 November 2016
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Stromberg Carlson 68 Circa 1938
 Jimb's Gravatar Started by: Jimb at
9:11:53 PM on 18 November 2016
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1S2 Rectifier . Flyback windings Insulation Question please
 Vintage Pete's avatar Started by: Vintage Pete at
7:15:56 PM on 12 November 2016
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Testing an old B&W TV
 Scotty's Gravatar Started by: Scotty at
6:48:27 PM on 7 November 2016
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How to Disassemble This Condenser?
 Cpsmusic's Gravatar Started by: Cpsmusic at
6:05:13 PM on 7 November 2016
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V.C.R. Record Speed Questions.
 Labrat's avatar Started by: Labrat at
6:04:17 PM on 5 November 2016
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Valve complement references
 GBR's Gravatar Started by: GBR at
4:01:23 PM on 28 October 2016
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80 2A5 58 57 ?
 Joerik's Gravatar Started by: Joerik at
2:47:04 PM on 24 October 2016
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RCA Radiola 33
 JamieLee's Gravatar Started by: JamieLee at
6:42:23 PM on 23 October 2016
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Only one speaker working.... amongst other concerns?
 Big Ad's Gravatar Started by: Big Ad at
4:59:15 PM on 22 October 2016
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Help with an Kingsley RKR
 Ads's Gravatar Started by: Ads at
2:40:38 PM on 20 October 2016
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Kriesler 11-99 filter caps
 JamieLee's Gravatar Started by: JamieLee at
10:12:23 PM on 10 October 2016
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STC 250 NO weak audio or schematic
 Technomaniac's Gravatar Started by: Technomaniac at
4:53:02 PM on 10 October 2016
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Philips Radioplayer 4462
 Sue's avatar Started by: Sue at
3:00:26 PM on 10 October 2016
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High voltage Capacitors ?
 Joerik's Gravatar Started by: Joerik at
5:47:41 AM on 10 October 2016
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Astor NJ problem... Any Idea's welcome.
 JamieLee's Gravatar Started by: JamieLee at
10:18:46 PM on 8 October 2016
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Help identifying Kriesler 11-104 PT specs
 Zeerust's Gravatar Started by: Zeerust at
7:12:21 PM on 1 October 2016
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Output transformers, Kriesler 11-104
 Zeerust's Gravatar Started by: Zeerust at
12:41:24 AM on 29 September 2016
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Which Jaycar transformers can be used as a speaker transformer
 Robbbert's avatar Started by: Robbbert at
12:28:14 PM on 22 September 2016
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Does the local oscillator level affect the sensitivity?
 Robbbert's avatar Started by: Robbbert at
7:40:17 PM on 16 September 2016
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Help With HMV Stereophonic Electrogram Portable Record Player Repairs
 Israel's Gravatar Started by: Israel at
9:59:56 AM on 16 September 2016
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Circuit diagram wanted for HMV Nippergram C13D from 1952 (Opinions too!)
 JamieLee's Gravatar Started by: JamieLee at
1:24:18 PM on 10 September 2016
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Circuit diagram wanted for a Democrat radiogram
 Scotty's Gravatar Started by: Scotty at
1:01:06 PM on 31 August 2016
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MKT 630V axial caps
 Johnny's avatar Started by: Johnny at
10:52:43 AM on 31 August 2016
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Traeger 48S3 circuit wanted.
 Sirwin's avatar Started by: Sirwin at
10:09:18 AM on 28 August 2016
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Australian DC Mains Power
 Pa Man's Gravatar Started by: Pa Man at
10:49:40 PM on 25 August 2016
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Unknown out-of-the-console radio #3
 Robbbert's avatar Started by: Robbbert at
11:10:13 AM on 24 August 2016
No new posts
An interesting puzzle...
 JamieLee's Gravatar Started by: JamieLee at
8:38:46 PM on 21 August 2016
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Neons now come in blue and green
 GTC's avatar Started by: GTC at
9:56:44 PM on 18 August 2016
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Unknown out-of-the-console radio #2
 Robbbert's avatar Started by: Robbbert at
10:54:08 AM on 17 August 2016
No new posts
Bad caps also afflict computers
 Wa2ise's avatar Started by: Wa2ise at
5:54:39 AM on 17 August 2016
No new posts
Circuit for AWA Fisk 188
 Johnny's avatar Started by: Johnny at
6:12:20 PM on 10 August 2016
No new posts
Unknown wooden radio #5
 Robbbert's avatar Started by: Robbbert at
11:21:11 AM on 10 August 2016
No new posts
An essay on a valve wobbulator design
 Fred Lever's Gravatar Started by: Fred Lever at
7:57:58 PM on 7 August 2016
No new posts
HMV model 32-46 or 82-46 radiogram circuit diagram wanted.
 Sirwin's avatar Started by: Sirwin at
9:36:02 AM on 5 August 2016
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Modified Tasma 1001
 RobEddy's Gravatar Started by: RobEddy at
1:13:14 PM on 3 August 2016
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Unknown wooden radio #4
 Robbbert's avatar Started by: Robbbert at
12:13:16 PM on 3 August 2016
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AWV AS-series transistors Australian made
 Sue's avatar Started by: Sue at
12:17:47 PM on 2 August 2016
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Peter Pan radiogram mr1317
 Thomasmitch's Gravatar Started by: Thomasmitch at
10:39:00 PM on 1 August 2016
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EMMCO headphones
Tallar Carl's avatar Started by: Tallar Carl at
8:33:59 PM on 1 August 2016
No new posts
Hotpoint schematics needed
 GBR's Gravatar Started by: GBR at
6:26:36 PM on 1 August 2016
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Circuit diagram needed for Neckermann-Versand: Tonmeister 3D Super 3956
 MacGyver's Gravatar Started by: MacGyver at
3:43:40 PM on 27 July 2016
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Radio going off station
 Tallar Carl's avatar Started by: Tallar Carl at
9:02:37 PM on 26 July 2016
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AWA 453-P Battery portable oscillator problems
 Simplex's Gravatar Started by: Simplex at
2:33:00 PM on 24 July 2016
No new posts
Healing 401A Data and Pictures
 Flakes's avatar Started by: Flakes at
10:33:57 PM on 22 July 2016
No new posts
Quiet Peal, possibly suffering loss of induction in the I.F. section.
JamieLee's Gravatar Started by: JamieLee at
1:37:31 PM on 21 July 2016
No new posts
Circuits needed for Operatic 45MA and 37MA radios
 Fred Lever's Gravatar Started by: Fred Lever at
1:01:02 PM on 20 July 2016
No new posts
Unknown wooden radio #3
 Robbbert's avatar Started by: Robbbert at
11:21:30 AM on 20 July 2016
No new posts
Seeking Kriesler schematics
 GBR's Gravatar Started by: GBR at
9:25:47 AM on 18 July 2016
No new posts
Unknown wooden radio #2
 Robbbert's avatar Started by: Robbbert at
11:37:40 AM on 13 July 2016
No new posts
Valve queries?
 Tallar Carl's avatar Started by: Tallar Carl at
1:43:20 AM on 9 July 2016
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Frequency mixer tube problems 😕
 Leon Spicer's Gravatar Started by: Leon Spicer at
9:17:11 PM on 8 July 2016
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