[ARC5] BC-230 Bringing back an old thead.

[WA5CAB--- via ARC5]

I hate to do it but I have to disagree.  I finally found some information 
on the 10Y in the obsolete tube section of RCA TT-4.  And compared it to the 
801 in TT-3 (TT-4 lists 801A but not 801).  Not only are the max plate 
voltages  and plate dissipation higher for the 801 versus the 10Y (600 versus 450 
and 20 versus 15), but the interelectrode capacitance is different (6, 4.5, 
1.5 versus 7, 4, 3).  TT-3 doesn't list the 10 and I still haven't found 
anything listing 10 Special.  10 is shown in RCA RC-11 and others but all it 
shows are Class A audio service specs, which are lower than those for the 
10Y.  The 10's Class C CW ratings if given would probably also be lower than 
the 10Y.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 10/09/2014 11:22:31 AM Central Daylight Time, 
arc5 at ix.netcom.com writes: 
> ----- Original Message ----- 
> From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
> On 8 Oct 2014 at 22:48, WA5CAB--- via ARC5 wrote:
> >
> >>The 801 is a VT-62, not a VT-25.
> >
> >Isn't the VT-25 a 10?
> I wrote about this awhile back.
> The VT-25 is a type 801 "faked-up" with VT-25 markings.
> VT-25*A* with the larger, longer plate are real "10 Special"
> and are good for twice the power out in a BC-230.
> Interchangeable in the BC-375, as Dennis said.