[AMPS] Novupler FS:

[Rich Measures]

>   If you still have this I would be interested.

Bill.      Sorry.  The novupler has been bought by Mr. Paul Kiesel.  

>By the way I found a neat little amplifier at a 
>flea market this weekend with a pair of Push Pull
>4E27's VHF. It is a nice compact package and
>since it the tank coil was removed  I thought about
>making a little HF G-G amp. Do you know of anyone
>that has used 4E27's in grounded grid?

Yes.  He used four in parallel.  A pair of 4E27s in GG is pretty much 
like one 4-400A in GG.  //  To improve cooling, the bases should be 
drilled out like the bases of 5-125Bs.  Transverse air cooling (like the 
SB-220) works best.  

>  The 4E27 uses 813 socket but will take much higher B+.

Indeed

>I'd put in 813's but I would have to change the filament
>transformer.  
>
>73
>Bill wa4lav
>
>
>At 12:29 PM 8/15/99 -0700, you wrote:
>>
>> A novupler is a self-powered 9x frequency multiplier.  I built one using 
>>the Motorola IN5150 step-recovery diode.  Ten watts in on two meters 
>>produces approx. 2 1/2w out at 1296 MHz.  I once used this one to 
>>communicate over 70 miles.  The novupler works on CW or FM modes.  It is 
>>not useful for SSB.   This one is for sale for ten dollars postpaid - 
>>including a spare 1N5150.  
>>
>>-
>>-  Rich...
>>R. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  
>>
>>
>>--
>>FAQ on WWW:               http://www.contesting.com/ampsfaq.html
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>>
>>
>
>  William L. Fuqua III  P.E.  E-mail WLFUQU00@POP.UKY.EDU  Phone (606) 
>257-4155
>  Department of Physics and Astronomy      CP-177 Chem. Phys. Bldg.  
>  University of Kentucky ,                 Lexington, Ky 40506-0055
> 
>  
>


-
-  Rich...
R. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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