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Re: Building a valve radio

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  Re: Building a valve radio Jasen Betts <jasen@xnet.co.nz> - 2015-06-14 06:02 +0000
    Re: Building a valve radio Michael Black <et472@ncf.ca> - 2015-06-17 19:30 -0400

#4639 — Re: Building a valve radio

On 2015-06-12, Justin Thyme <JustinThyme@nowhere.com> wrote:
> Suppose a fellow wanted to build a valve (=vacuum tube) AM radio.  Where 
> might he find detailed instructions?

http://www.amazon.co.uk/Radio-Boys-Junior-Teach-Yourself-x/dp/B0030TYB2Q

I have a copy here, seems pretty detailed. some parts may be hard to
get, like the "B" batteries.

-- 
umop apisdn

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#4641

On Sun, 14 Jun 2015, Jasen Betts wrote:

> On 2015-06-12, Justin Thyme <JustinThyme@nowhere.com> wrote:
>> Suppose a fellow wanted to build a valve (=vacuum tube) AM radio.  Where
>> might he find detailed instructions?
>
> http://www.amazon.co.uk/Radio-Boys-Junior-Teach-Yourself-x/dp/B0030TYB2Q
>
> I have a copy here, seems pretty detailed. some parts may be hard to
> get, like the "B" batteries.
>
In the antique radio newsgroup, it's not uncommon to put a string of 9v 
batteries toegher to get a "B" battery.  The connectors at the top allow 
them to be connected in series.  It works since B+ was high voltage but 
low current.

   Michael

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