CCL Capacitor for Deccasound 600 - UK Vintage Radio Repair and Restoration Discussion Forum

ysgramor87 · 13th Jan 2021, 10:19 am

Hi everyone,

Could you please tell me any replacement for CCL capacitor that I can find on RS? (see attachmemts)

Briefly,

There is 12V on it which comes from transformer but other 2 feet has no voltage(? I think should be voltage there ? ) that 2 feet goes to amplifier boards as I understand from the circuit.

I couldn't find any drawing for this amplifier aswell. I appreciate any help from you.

Cheers

Fatih

Station X · 13th Jan 2021, 10:32 am

That's the reservoir and smoothing capacitors in a single can. It's normal to see zero volts on the negative tag, which is normally connected to the chassis.

Unless you can hear mains hum from the speaker or the capacitor gets hot leave it alone.

vinrads · 13th Jan 2021, 10:33 am

Hi Fatih you should have voltage on two of the terminals the red and yellow ones , readings taken from the one with the black wire going to it which should go to chassis ,if you don't have voltage on both suspect the choke ,it has 56785 stamped on it there will have just two wires from it you should have volts on both , what is the 50ohm resistor doing , can you check where it is connected, Mick.

Station X · 13th Jan 2021, 10:41 am

Faith.

You say you have a circuit, but no drawing? Can you post a portion of the circuit if possible.

snowman_al · 13th Jan 2021, 10:43 am

With your meter, check the voltage on the cap again please. Black lead to the black wire terminal, the red lead to the red wire then to the pink wire. There should be a voltage on both.

There has been a little bit of fixing up going on in there already, the transformer is not original and the wiring looks less than a premium job...

vinrads · 13th Jan 2021, 10:43 am

Hi Graham I have a cct ,I wonder if the resistor is the smoothing choke/res. Mick.

ysgramor87 · 13th Jan 2021, 10:46 am

Quote:

Originally Posted by vinrads

Hi Fatih you should have voltage on two of the terminals the red and yellow ones , readings taken from the one with the black wire going to it which should go to chassis ,if you don't have voltage on both suspect the choke ,it has 56785 stamped on it there will have just two wires from it you should have volts on both , what is the 50ohm resistor doing , can you check where it is connected, Mick.

Thank you Mick,

I'll try to do it when I go to home and update you

ysgramor87 · 13th Jan 2021, 10:50 am

Quote:

Originally Posted by Station X

Faith.

You say you have a circuit, but no drawing? Can you post a portion of the circuit if possible.

Hi,

I just followed that cables from capacitor to boards. I don't have any drawings unfortunately. I was assuming there must be voltage on those boards because I don't hear any sound when I tried amplifier first time. I'll have more measurements when I have time.

Thank you.

Station X · 13th Jan 2021, 10:52 am

OK. Sounds like what's needed at this stage is fault finding rather than capacitor replacement

ysgramor87 · 13th Jan 2021, 10:53 am

Quote:

Originally Posted by snowman_al

With your meter, check the voltage on the cap again please. Black lead to the black wire terminal, the red lead to the red wire then to the pink wire. There should be a voltage on both.

There has been a little bit of fixing up going on in there already, the transformer is not original and the wiring looks less than a premium job...

I think someone has tried to fix it and failed. Maybe a newbie like me

I have basic electronic knowledge it's not my expertise but I want to learn more about fixing record players amplifiers etc.

Cheers

ysgramor87 · 13th Jan 2021, 10:54 am

Quote:

Originally Posted by Station X

OK. Sounds like what's needed at this stage is fault finding rather than capacitor replacement

I thought it's faulty when I don't see any voltage on it. I'll try to get additional measurements If I understand you all correctly

ysgramor87 · 13th Jan 2021, 11:00 am

Quote:

Originally Posted by vinrads

Hi Fatih you should have voltage on two of the terminals the red and yellow ones , readings taken from the one with the black wire going to it which should go to chassis ,if you don't have voltage on both suspect the choke ,it has 56785 stamped on it there will have just two wires from it you should have volts on both , what is the 50ohm resistor doing , can you check where it is connected, Mick.

50 ohm is for light bulb as I remember Mick. I'll try to do what you've suggested.

Thanks again.

DMcMahon · 13th Jan 2021, 11:50 am

I wondered if the circuit is similar to the 603 (which is on the Forum DVD) it has the same capacitors and choke but I cannot easily see the 50 Ohm resistor ?

David

ysgramor87 · 13th Jan 2021, 12:27 pm

Quote:

Originally Posted by DMcMahon

I wondered if the circuit is similar to the 603 (which is on the Forum DVD) it has the same capacitors and choke but I cannot easily see the 50 Ohm resistor ?

David

Hi David,

As I remember It's connected to transformer and goes to on off indication light bulb. Nothing else.

Thanks

Fatih

Robint 47 · 13th Jan 2021, 3:53 pm

This is an ampilier unit type 604 which circuit wise is a 603 system but less deck which is a DS1000. Someone has had a real go there should be at least 30V on the cap, ht supply feeding the output modules LP1173. And yes transformer is wrong , before any further work is done it needs to be put back to original spec. Also beware it needs speakers of 8 ohm impedance Decca type L100

ysgramor87 · 13th Jan 2021, 4:30 pm

What about any other speaker with 8 ohms impedance?

Unfortunately, I don't have any drawings for this and no clue how it should be. Sounds like better to give it to service for me

Cheers

Fatih

Station X · 13th Jan 2021, 4:42 pm

Quote:

Originally Posted by ysgramor87

Unfortunately, I don't have any drawings for this and no clue how it should be. Cheers, Fatih

I don't generally volunteer other member's services, but perhaps vinrads can help you there?

ysgramor87 · 13th Jan 2021, 4:52 pm

Quote:

Originally Posted by Station X

Quote:

Originally Posted by ysgramor87

Unfortunately, I don't have any drawings for this and no clue how it should be. Cheers, Fatih

I don't generally volunteer other member's services, but perhaps vinrads can help you there?

If I need spesific speakers, it'd better to sell it maybe. If not of course I'll look for any help. Thank you

vinrads · 13th Jan 2021, 5:15 pm

Quote:

Originally Posted by DMcMahon

I wondered if the circuit is similar to the 603 (which is on the Forum DVD) it has the same capacitors and choke but I cannot easily see the 50 Ohm resistor ?

David

Hi David it looks like the 50ohm is an add on probably to drop some volts to the lamp, Mick.

vinrads · 13th Jan 2021, 5:18 pm

Just to confirm there needs to be 28 volts on the fuse , any 8 ohm speakers will do must be 8 ohm . Mick.

13th Jan 2021, 10:19 am	#1
ysgramor87 Tetrode Join Date: Nov 2020 Location: London, UK. Posts: 87	CCL Capacitor for Deccasound 600 Hi everyone, Could you please tell me any replacement for CCL capacitor that I can find on RS? (see attachmemts) Briefly, There is 12V on it which comes from transformer but other 2 feet has no voltage(? I think should be voltage there ? ) that 2 feet goes to amplifier boards as I understand from the circuit. I couldn't find any drawing for this amplifier aswell. I appreciate any help from you. Cheers Fatih Attached Thumbnails

13th Jan 2021, 10:32 am	#2
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: CCL Capacitor for Deccasound 600 That's the reservoir and smoothing capacitors in a single can. It's normal to see zero volts on the negative tag, which is normally connected to the chassis. Unless you can hear mains hum from the speaker or the capacitor gets hot leave it alone. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

13th Jan 2021, 10:33 am	#3
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,764	Re: CCL Capacitor for Deccasound 600 Hi Fatih you should have voltage on two of the terminals the red and yellow ones , readings taken from the one with the black wire going to it which should go to chassis ,if you don't have voltage on both suspect the choke ,it has 56785 stamped on it there will have just two wires from it you should have volts on both , what is the 50ohm resistor doing , can you check where it is connected, Mick. Last edited by vinrads; 13th Jan 2021 at 10:41 am.

13th Jan 2021, 10:41 am	#4
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: CCL Capacitor for Deccasound 600 Faith. You say you have a circuit, but no drawing? Can you post a portion of the circuit if possible. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

13th Jan 2021, 10:43 am	#5
snowman_al Octode Join Date: Dec 2018 Location: Llandeilo, West Wales, UK. Posts: 1,092	Re: CCL Capacitor for Deccasound 600 With your meter, check the voltage on the cap again please. Black lead to the black wire terminal, the red lead to the red wire then to the pink wire. There should be a voltage on both. There has been a little bit of fixing up going on in there already, the transformer is not original and the wiring looks less than a premium job... __________________ Never Leave Well Enough Alone...

13th Jan 2021, 10:52 am	#9
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,289	Re: CCL Capacitor for Deccasound 600 OK. Sounds like what's needed at this stage is fault finding rather than capacitor replacement __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

13th Jan 2021, 11:50 am	#13
DMcMahon Dekatron Join Date: Apr 2019 Location: Worthing, West Sussex, UK. Posts: 6,604	Re: CCL Capacitor for Deccasound 600 I wondered if the circuit is similar to the 603 (which is on the Forum DVD) it has the same capacitors and choke but I cannot easily see the 50 Ohm resistor ? David

13th Jan 2021, 3:53 pm	#15
Robint 47 Tetrode Join Date: May 2014 Location: Bridgnorth, Shropshire, UK. Posts: 52	Re: CCL Capacitor for Deccasound 600 This is an ampilier unit type 604 which circuit wise is a 603 system but less deck which is a DS1000. Someone has had a real go there should be at least 30V on the cap, ht supply feeding the output modules LP1173. And yes transformer is wrong , before any further work is done it needs to be put back to original spec. Also beware it needs speakers of 8 ohm impedance Decca type L100

13th Jan 2021, 4:30 pm	#16
ysgramor87 Tetrode Join Date: Nov 2020 Location: London, UK. Posts: 87	Re: CCL Capacitor for Deccasound 600 What about any other speaker with 8 ohms impedance? Unfortunately, I don't have any drawings for this and no clue how it should be. Sounds like better to give it to service for me Cheers Fatih

13th Jan 2021, 5:18 pm	#20
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,764	Re: CCL Capacitor for Deccasound 600 Just to confirm there needs to be 28 volts on the fuse , any 8 ohm speakers will do must be 8 ohm . Mick.