6GE5 conversion of 6KD6 circuit?

[kd4e]

Just looked more closely ...

The 6JM6 matches the 6GE5 well for power and voltage
and other specs, both are 17.5W plate dissipation.

That explains the much lower price.

The 6LF6 matches (actally exceeds) the 6KD6 for plate
dissipation at 40W vs 33W and is otherwise very similar.

Both are priced in the stratosphere.

> That is an interesting alternative - but one has
> to wonder why they are so cheap if they are an
> easy substitute - any ideas?
> 
> A single GI-7B would be neat - but I have doubts
> the power supply could be boosted to a high
> enough voltage to make that work.
> 
> Some ideas here ...
> http://www.xs4all.nl/~pa0fri/Lineairs/GLA1000/gla1000eng.htm
> 
>>> Anyone done a 6GE5 conversion of 6KD6 circuit?
>>>
>>> Most sweep tubes are priced at insane levels.
>>>
>>> While the 6GE5 will not generate nearly the same output it is far 
>>> less costly.
>>>
>>> http://www.nj7p.org/Tube4.php?tube=6GE5
>>> http://tdsl.duncanamps.com/show.php?des=6kd6
>>
>>
>> How about the 6JM6? As cheap if not cheaper than the 6GE5, same 17.5 W 
>> rating,
>> same pinout as 6KD6 except that with the 6KD6 all grids are connected 
>> to two pins each
>> whereas in the 6JM6 G1 and G2 are connected to only one pin each,
>>
>> <http://www.nj7p.org/Tube4.php?tube=6JM6>
>>
>> 73,
>>
>> Deane McIntyre VE6BPO
>>
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> 

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