[Boatanchors] Euro sub for 1R5/1L6

[Carl]

If you have the G-500, part of the work is already done. The chassis is 
punched for the 1LA6 and the 1L6 is on a plate. Switching over wont be 
easy but it has been done by others.

Ive never seen an adapter and making one would be a kluge and reports on 
another forum is that it changes alignment on the 19M band so that 
calibration is off even with an alignment.

I have a H-500 with a 1R5 and it works well, as reported by many over 
the years, on the BCB and lower SW bands. Since I only use it at the 
beach in Maine during the summer to impress the tourists the BCB and a 
Red Sox game is about all it gets used for.  It always draws a crowd as 
it outperforms 99% of the SS sets on other blankets.

I also have a mint B-600 with a NOS 1L6 (found in an old tube caddy that 
was packed full of many nice audiophool tubes, and all for $20) but that 
is strictly a shelf queen.

Carl
KM1H


----- Original Message ----- 
From: "Sandy" <ebjr37 at charter.net>
To: "Carl" <km1h at jeremy.mv.com>; <meils at get2net.dk>; 
<boatanchors at mailman.qth.net>
Sent: Monday, March 02, 2009 12:50 PM
Subject: Re: [Boatanchors] Euro sub for 1R5/1L6


> Another possible "sub" may be the 1U6.  I have never seen one though!
>
> An EXACT substitution (except for size!) would be a 1LA6.  How does 
> one make an adapter for such a "sub"?  (Maybe with a loctal socket and 
> a Pomona test point 7 pin adapter much modified?  I'd bet there are 
> some 1LA6's around unless these are rare too!
>
> 73,
>
> Sandy W5TVW
>
> ----- Original Message ----- 
> From: "Carl" <km1h at jeremy.mv.com>
> To: <meils at get2net.dk>; <boatanchors at mailman.qth.net>
> Sent: Monday, March 02, 2009 10:55 AM
> Subject: Re: [Boatanchors] Euro sub for 1R5/1L6
>
>
>> The DK-91 is the same as the 1R5 Henry.
>>
>> The DK-96 may be a 1L6 substitute possibility with pins 5 & 6 
>> reversed
>> however there are different interelectrode capacitance differences. 
>> Id
>> have to dig out a TO schematic to see if they are critical.
>>
>> Carl
>> KM1H
>>
>> ----- Original Message ----- 
>> From: <meils at get2net.dk>
>> To: <boatanchors at mailman.qth.net>
>> Sent: Monday, March 02, 2009 3:57 AM
>> Subject: [Boatanchors] Euro sub for 1R5/1LS
>>
>>
>>
>>
>> I checked my file-diagrams & notes and can see in a
>> magazine article about the Zenith Transoceanic that 1R5 was used for
>> replacement for the more scarce 1L6 - some modifications had to be 
>> made
>> on
>> the 1R5 pins.
>>
>> My replacement is either the DK91 and DK96 but
>> will have to check further as to which replaces 1L6 and 1R5,
>> respectively. If I recall correctly, I used a DK96.
>>
>> Henry
>> /OZ1UF - Copen.
>>
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