Boissonnault Whitestone

[h***@gmail.com]

I have bought, but don't yet have to look at, a Boissonnault
Whitestone from about 1925. As I understand it, this is TRF,
and five tubes, but I don't know much else about it.

It would really be nice to have a schematic, but I might
just have to trace the circuit.

If anyone knows how to find a schematic, that would be nice.

-- glen

[Peter Wieck]

Post by h***@gmail.com
I have bought, but don't yet have to look at, a Boissonnault
Whitestone from about 1925. As I understand it, this is TRF,
and five tubes, but I don't know much else about it.
It would really be nice to have a schematic, but I might
just have to trace the circuit.
If anyone knows how to find a schematic, that would be nice.
-- glen

http://www.nostalgiaair.org/PagesByModel/794/M0029794.pdf

Here are a whole bunch of variations on the TRF theme such that, at least, you will have an idea of voltages and how these things go together.

Hope it helps.

Peter Wieck
Melrose Park, PA

[h***@gmail.com]

Post by Peter Wieck

Post by h***@gmail.com
I have bought, but don't yet have to look at, a Boissonnault
Whitestone from about 1925. As I understand it, this is TRF,
and five tubes, but I don't know much else about it.
It would really be nice to have a schematic, but I might
just have to trace the circuit.

http://www.nostalgiaair.org/PagesByModel/794/M0029794.pdf
Here are a whole bunch of variations on the TRF theme
such that, at least, you will have an idea of voltages
and how these things go together.

Yes, I am not too worried, not like today's products where it
is close to impossible without a schematic.

Well, except that electrolytics die fast enough, that you can
often fix things just knowing that.

But I found collections like:

http://www.nucow.com/SkizsPdfOnly/Supreme_1926-1969_Volumes/1926-38.pdf

but nothing Boissonnault in the list.

thanks.

[Peter Wieck]

Post by h***@gmail.com
Yes, I am not too worried, not like today's products where it
is close to impossible without a schematic.
Well, except that electrolytics die fast enough, that you can
often fix things just knowing that.

Don't think there will be too many electrolytics in that old beast ;-)>

Peter Wieck
Melrose Park, PA

[h***@gmail.com]

Post by Peter Wieck

Post by h***@gmail.com
Yes, I am not too worried, not like today's products where it
is close to impossible without a schematic.
Well, except that electrolytics die fast enough, that you can
often fix things just knowing that.

Don't think there will be too many electrolytics in that old beast ;-)>

I was last week reading (there is a web site for them) some Australian
radio restoration articles. Much of those were for radios from
the 1930's, near the beginning of electrolytics.

The Boissonnault is from about 1925, so, yes, probably too early.

Unless it has had some previous restoration. (I don't have it
yet, I got it from a Goodwill auction.)

There could be changes over the years, from when it was young
until very recently, including adding electrolytics.