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 Kriesler Radio Gram Output Transformer
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 Return to top of page · Post #: 1 · Written at 4:53:44 PM on 11 February 2017.
HankB's Gravatar
 Location: Gosford, NSW
 Member since 11 February 2017
 Member #: 2060
 Postcount: 5

Hi Everyone,

This is my first post here, its great to see such a great forum dedicated to vintage radios and TVs.

My question is,

My Son and I are doing up a Kriesler Radio Gram MOD 11-91. and there are some burnt out parts that we need to replace. One of them is one of the audio output transformer. It has stamped on it "Rola June 1963" and MOD K38-13.

Specs are

Primary 7000Ohms Secondary 15Ohms.

Does anyone know where I can get one of these or a modern day substitute?

Thanks in advance and if you require further info please let me know

Hank


 
 Return to top of page · Post #: 2 · Written at 5:44:38 PM on 11 February 2017.
JFB's Gravatar
 JFB
 Location: Milton, NSW
 Member since 27 June 2016
 Member #: 1945
 Postcount: 55

Hi Hank,

One option is the multi-tapped output transformer from RS see http://au.rs-online.com/web/p/audio-transformers/2106475/

I have used these in many restorations and they can often be hidden in the shell of the original output transformer.

Joe


 
 Return to top of page · Post #: 3 · Written at 5:59:56 PM on 11 February 2017.
Pa Man's Gravatar
 Location: Golden Grove, SA
 Member since 10 April 2015
 Member #: 1726
 Postcount: 149

Might Have will have a look through my stuff

Josh


 
 Return to top of page · Post #: 4 · Written at 9:07:50 AM on 12 February 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2149

I have quite a few output transformers if you are interested.


 
 Return to top of page · Post #: 5 · Written at 10:07:18 AM on 12 February 2017.
Pa Man's Gravatar
 Location: Golden Grove, SA
 Member since 10 April 2015
 Member #: 1726
 Postcount: 149

Got a Rola 1964 7000 to 15 ohm Tranny, leads may need to be extended.
Will check DC resistance but its yours if you want it

Josh


 
 Return to top of page · Post #: 6 · Written at 4:31:36 PM on 12 February 2017.
HankB's Gravatar
 Location: Gosford, NSW
 Member since 11 February 2017
 Member #: 2060
 Postcount: 5

Yes am interested to those who might have a working transformer, let me what you would like for one.

Joe thanks for the website, am considering this, would it be better to replace both transformers so they are the same?


 
 Return to top of page · Post #: 7 · Written at 4:38:00 PM on 12 February 2017.
Johnny's avatar
 Location: Hobart, TAS
 Member since 31 July 2016
 Member #: 1959
 Postcount: 543

Waste of time and money to replace both.
They either work or don't.
They really are nothing special and it will make little difference to fit something that has close specifications.
JJ


 
 Return to top of page · Post #: 8 · Written at 5:44:49 PM on 12 February 2017.
Pa Man's Gravatar
 Location: Golden Grove, SA
 Member since 10 April 2015
 Member #: 1726
 Postcount: 149

Just tested DC resistance and impedance and checks fine
You can have it, just cover the postage, A pre-paid 500g Sachel $8.50

Cheers Josh


 
 Return to top of page · Post #: 9 · Written at 8:01:46 PM on 12 February 2017.
HankB's Gravatar
 Location: Gosford, NSW
 Member since 11 February 2017
 Member #: 2060
 Postcount: 5

Thanks so much Josh I will take it, how do we do this? Can you send me a email for your account details


 
 Return to top of page · Post #: 10 · Written at 8:50:39 PM on 12 February 2017.
HankB's Gravatar
 Location: Gosford, NSW
 Member since 11 February 2017
 Member #: 2060
 Postcount: 5

Josh, do you happen to have the following capacitors also, more then happy to pay for

3x .0022
3x .047
3x 10 PF

All 400-600v

Or are these common parts I can get from Jaycar

Cheers
Hank


 
 Return to top of page · Post #: 11 · Written at 10:25:30 AM on 13 February 2017.
Pa Man's Gravatar
 Location: Golden Grove, SA
 Member since 10 April 2015
 Member #: 1726
 Postcount: 149

I Get caps as I need them Carl Tallar (further up this post) is the fella to ask, he knows people Smile
Will send an email to you is a minute about tranny

Cheers Josh


 
 Return to top of page · Post #: 12 · Written at 2:47:53 PM on 13 February 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2149

I can arrange those caps for you buddy just email me .


 
 Return to top of page · Post #: 13 · Written at 3:06:04 PM on 13 February 2017.
Johnny's avatar
 Location: Hobart, TAS
 Member since 31 July 2016
 Member #: 1959
 Postcount: 543

3 X 10 PF caps ?
Does not sound right for a broadcast valve radio.
Smile
JJ


 
 Return to top of page · Post #: 14 · Written at 8:51:19 PM on 13 February 2017.
HankB's Gravatar
 Location: Gosford, NSW
 Member since 11 February 2017
 Member #: 2060
 Postcount: 5

Hmmm I will check the values tomorrow


 
 Return to top of page · Post #: 15 · Written at 11:08:32 AM on 18 February 2017.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2149

I posted those caps this morning. Sorry for the delay.


 
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