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Hoffman Amps Forum image Author Topic: Re:globeking 100a  (Read 2471 times)

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Offline Noclue

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Re:globeking 100a
« on: October 30, 2017, 12:20:08 pm »
In the 50s i made up this radio and added a pen25 as an output valve .It worked ok .
So another 66 years to now and I've made the 100a again which works good with headphones but have not got the circuit for the add-on pen25 valve.
can anyone help by giving me the value of the components or better still a circuit.
im 83 and a little past it regards the workings of values etc.
HELP PLEASE

Offline SILVERGUN

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Re:globeking 100a
« Reply #1 on: October 30, 2017, 01:02:39 pm »
Welcome Noclue,
I wasn't born til '69 so I can't be much help, but I found this stuff on the internet
http://www.r-type.org/exhib/aaa0373.htm
 
http://www.r-type.org/pdfs/pen25.pdf
 
http://www.vintageradio.me.uk/kits/globe_king.htm
 
« Last Edit: October 30, 2017, 01:10:03 pm by SILVERGUN »

Offline Noclue

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Re:globeking 100a
« Reply #2 on: October 31, 2017, 03:58:16 am »
Thanks for the reply.
I to have looked at this site and a few more to boot and the majority are all transformers coupled but i am looking for the part of the circuit from the triode output to the pentode input values, also the values of the components from the pen 25

 


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