> 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
>>Submissions: amps@contesting.com
>>Administrative requests: amps-REQUEST@contesting.com
>>Problems: owner-amps@contesting.com
>>Search: http://www.contesting.com/km9p/search.htm
>>
>>
>
> 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
--
FAQ on WWW: http://www.contesting.com/ampsfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|