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 HMV little nipper valve radio.
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 Return to top of page · Post #: 1 · Written at 4:36:18 PM on 20 March 2021.
Bowler's Gravatar
 Bowler
 Location: Bongaree, QLD
 Member since 26 October 2018
 Member #: 2308
 Postcount: 79

Hi I intend to refurbish a HMV LITTLE NIPPER RADIO. It has the appearance of a 64-52 model but has a shortwave section. I have studied the available circuits but cant find one that exactly matches. The difference is the volume control is tapped and the tap is fed to the tone control through a 33kohm resistor. Just wondering if any one has struck this. There is also some minor changes to some component values.
Regards Bowler.
 
 Return to top of page · Post #: 2 · Written at 11:46:28 PM on 20 March 2021.
BurntOutElectronics's Gravatar
 BurntOutElectronics
 Location: Melbourne, VIC
 Member since 2 October 2019
 Member #: 2392
 Postcount: 269

https://www.kevinchant.com/uploads/7/1/0/8/7108231/64-52.pdf

Don't know if you've downloaded this one.
Different values may have been used depending on availability of parts at the time.

Wish you luck
 
 Return to top of page · Post #: 3 · Written at 11:51:30 PM on 20 March 2021.
BurntOutElectronics's Gravatar
 BurntOutElectronics
 Location: Melbourne, VIC
 Member since 2 October 2019
 Member #: 2392
 Postcount: 269

https://www.kevinchant.com/uploads/7/1/0/8/7108231/64.pdf

Here's the chassis that should be in your model
 
 Return to top of page · Post #: 4 · Written at 8:14:53 PM on 22 June 2021.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5254

Beware of R6 feeding the screens. That one in earlier models was two parallel 22K resistors. I have seen a few examples where "I" squared R wins with the 10K resistor as the current draw of the screens exceeds one watt. It then fries.

Marc
 
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