Tandberg TP41. Capacitor value? - UK Vintage Radio Repair and Restoration Discussion Forum

Nukeybrown · 24th Feb 2017, 12:20 am

Can anyone tell me the value of C514 as cannot for the life of me make out the schematic print? The one in it isn't original.

ukcol · 24th Feb 2017, 10:30 am

See link in post #2

https://www.vintage-radio.net/forum/...ad.php?t=50566

ms660 · 24th Feb 2017, 10:31 am

500uF in the schematic I'm looking at.

Lawrence.

Nukeybrown · 24th Feb 2017, 11:01 am

500uf right , just the one that's in is 400uf 16v not original

Nukeybrown · 24th Feb 2017, 11:03 am

Have you got a tp41 Laurence?

ms660 · 24th Feb 2017, 11:56 am

No I haven't, only a copy of the schematic.

Lawrence.

Nukeybrown · 24th Feb 2017, 11:58 am

Ok just wondering about this dial light. It comes on when pressing the volume down just not sure if it's meant to stay on when release or only stay on when you have it pressed in. If that makes sense

julie_m · 24th Feb 2017, 2:30 pm

On a battery-powered radio, in the days of tungsten filament bulbs, an intermittent dial light was an essential power-saving measure. Some sets were designed to be continuously illuminated when running on mains power.

Nukeybrown · 24th Feb 2017, 5:51 pm

So is it meant to stay on when pressed down or just on when finger kept pressed on button?

Herald1360 · 25th Feb 2017, 10:16 am

Work the same as a doorbell. Only on whilst being pushed. Use one hand for light, t'other to tune the set.

Nukeybrown · 25th Feb 2017, 4:49 pm

Ok herald just seemed a bit odd as a lot of these were marketed as car radio , so while pressing the light with one had , tuning with the other, whos driving the car lol

ms660 · 25th Feb 2017, 5:21 pm

Quote:

Originally Posted by Nukeybrown

Ok herald just seemed a bit odd as a lot of these were marketed as car radio , so while pressing the light with one had , tuning with the other, whos driving the car lol

Look at the schematic?

Lawrence.

ukcol · 25th Feb 2017, 6:34 pm

The "car adaptor" on the schematic shows the lamps always powered (via a 47 ohm resistor) when the radio is on and powered from the car's battery. When using the radio as a portable the lamps are powered via a separate switch. I think we can conclude that this switch must be a press and hold type (non-latching) and the radio is working as it was designed.

roverp6 · 25th Feb 2017, 7:16 pm

interestingly i have TP43 and i don't have a light function which is also one that could be mounted in a special bracket for a car. these radios are excellent and have a very good reception and sound. here is schematic for the TP41 might be more readable?
Clive

Nukeybrown · 25th Feb 2017, 11:10 pm

Thanks for a clearer schematic rover much appreciated and thanks to others for input on light issue

roverp6 · 25th Feb 2017, 11:35 pm

well i couldn't pass up another Tandberg owner few and far between

Nukeybrown · 26th Feb 2017, 12:02 am

Probaby due to the availbility of tandberg sets being few and far between, truth be known i have a soft spot for tandberg radios but im a hacker guy deep down.

Nukeybrown · 19th Mar 2017, 8:29 pm

Lol now got 2 rover.

24th Feb 2017, 12:20 am	#1
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Tandberg TP41. Capacitor value? Can anyone tell me the value of C514 as cannot for the life of me make out the schematic print? The one in it isn't original.

24th Feb 2017, 10:31 am	#3
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Tandberg TP41. Capacitor value? 500uF in the schematic I'm looking at. Lawrence.

24th Feb 2017, 11:01 am	#4
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? 500uf right , just the one that's in is 400uf 16v not original

24th Feb 2017, 11:03 am	#5
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? Have you got a tp41 Laurence?

24th Feb 2017, 11:56 am	#6
ms660 Dekatron Join Date: Apr 2011 Location: Cornwall, UK. Posts: 13,454	Re: Tandberg TP41. Capacitor value? No I haven't, only a copy of the schematic. Lawrence.

24th Feb 2017, 10:30 am	#2
ukcol Rest in Peace Join Date: May 2003 Location: Harlaxton, Lincolnshire, UK. Posts: 3,944	Re: Tandberg TP41. Capacitor value? See link in post #2 https://www.vintage-radio.net/forum/...ad.php?t=50566

24th Feb 2017, 11:58 am	#7
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? Ok just wondering about this dial light. It comes on when pressing the volume down just not sure if it's meant to stay on when release or only stay on when you have it pressed in. If that makes sense

24th Feb 2017, 2:30 pm	#8
julie_m Dekatron Join Date: May 2008 Location: Derby, UK. Posts: 7,735	Re: Tandberg TP41. Capacitor value? On a battery-powered radio, in the days of tungsten filament bulbs, an intermittent dial light was an essential power-saving measure. Some sets were designed to be continuously illuminated when running on mains power. __________________ If I have seen further than others, it is because I was standing on a pile of failed experiments.

24th Feb 2017, 5:51 pm	#9
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? So is it meant to stay on when pressed down or just on when finger kept pressed on button?

25th Feb 2017, 10:16 am	#10
Herald1360 Dekatron Join Date: Feb 2007 Location: Leominster, Herefordshire, UK. Posts: 16,535	Re: Tandberg TP41. Capacitor value? Work the same as a doorbell. Only on whilst being pushed. Use one hand for light, t'other to tune the set. __________________ ....__________ ....\|____\|\|__\|__\_____ .=.\| _---\__\|__\|_---_\|. .........O..Chris....O

25th Feb 2017, 4:49 pm	#11
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? Ok herald just seemed a bit odd as a lot of these were marketed as car radio , so while pressing the light with one had , tuning with the other, whos driving the car lol

25th Feb 2017, 6:34 pm	#13
ukcol Rest in Peace Join Date: May 2003 Location: Harlaxton, Lincolnshire, UK. Posts: 3,944	Re: Tandberg TP41. Capacitor value? The "car adaptor" on the schematic shows the lamps always powered (via a 47 ohm resistor) when the radio is on and powered from the car's battery. When using the radio as a portable the lamps are powered via a separate switch. I think we can conclude that this switch must be a press and hold type (non-latching) and the radio is working as it was designed.

25th Feb 2017, 11:10 pm	#15
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? Thanks for a clearer schematic rover much appreciated and thanks to others for input on light issue

25th Feb 2017, 11:35 pm	#16
roverp6 Triode Join Date: Dec 2016 Location: Brandon, Manitoba, Canada Posts: 46	Re: Tandberg TP41. Capacitor value? well i couldn't pass up another Tandberg owner few and far between

26th Feb 2017, 12:02 am	#17
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? Probaby due to the availbility of tandberg sets being few and far between, truth be known i have a soft spot for tandberg radios but im a hacker guy deep down.

19th Mar 2017, 8:29 pm	#18
Nukeybrown Heptode Join Date: Jan 2016 Location: Gateshead, Tyne and Wear, UK. Posts: 504	Re: Tandberg TP41. Capacitor value? Lol now got 2 rover.