VHFcontesting
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Re: [VHFcontesting] Nice VHF amps available reasonably priced.

To: Terry Price <terry@directivesystems.com>, NEWSVHF@mailman.qth.net, "vhfcontesting@contesting.com" <VHFcontesting@contesting.com>, VHF@w6yx.stanford.edu
Subject: Re: [VHFcontesting] Nice VHF amps available reasonably priced.
From: Paul Rollinson <paulrollinson@sbcglobal.net>
Date: Mon, 05 Apr 2021 07:17:08 -0400
List-post: <mailto:vhfcontesting@contesting.com>
Good morning  all,for saleI will be traveling south on 4/22 so can meet along 
the rt 95 corridor between  new england and Durham NC. Returning north on 
Sunday.These are 4 chip Larcan amps delivering up to 1000w on 6/2/222 depending 
upon whick brick you purchase. Please email me for more details pics etc...$350 
each.73Thanks,Paul Rollinson, KE1LIRollinson Associates860-928-5147860-208-8814 
Cell/TextPaulrollinson@sbcglobal.net Representing Component Part Manufacturers 
for over 35 yearsSent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: Paul Rollinson 
<paulrollinson@sbcglobal.net> Date: 1/19/21  3:56 PM  (GMT-05:00) To: Terry 
Price <terry@directivesystems.com>, NEWSVHF@mailman.qth.net, 
"vhfcontesting@contesting.com" <VHFcontesting@contesting.com>, 
VHF@w6yx.stanford.edu Subject: RE: [VHFcontesting] Nice VHF amps available 
reasonably priced. Hi all,If your looking for 4 chip Larcan bricks to build an 
amp, or 2, let me know.I have lo-lo(6m), lo-hi(convert to 2m), and hi-hi ( 
222).I'm selling them for a friend.Let me know if intested. The more you buy, 
the better the price.Thanks,Paul Rollinson, KE1LI Rollinson 
Associates860-928-5147860-208-8814 Cell/TextPaulrollinson@sbcglobal.net 
Representing Component Part Manufacturers for over 35 yearsSent from my 
Verizon, Samsung Galaxy smartphone-------- Original message --------From: Terry 
Price <terry@directivesystems.com> Date: 1/19/21  3:41 PM  (GMT-05:00) To: 
NEWSVHF@mailman.qth.net, "vhfcontesting@contesting.com" 
<VHFcontesting@contesting.com>, VHF@w6yx.stanford.edu Subject: [VHFcontesting] 
Nice VHF amps available reasonably priced. Folks, thought I would pass this 
along. I've bought several of their HF-6mamps, 2m amps and 70cm amp (these are 
just the pallets, I add my ownsupport electronics and relays). They work VERY 
well and the workmanship onthe boards is first class.The HF/VHF units use a 
pair of MRF300's which are a cheap plastic tabdevice that is about $40 each 
from Digikey. They require 50V at 10-15A and12v for bias. I've found a device, 
a TL783 which is a 3 terminal regulatorthat unlike 78XX series which will only 
take up to 36v on the input,TL783's will take 50V and give up to 700ma output 
current, more than enoughto run relays and provide 12v bias. These devices only 
need two resistorsto set the voltage. I build mine with a pot in place of one 
resistor so Ican adjust the voltage to suit whatever relays I'm using.If you 
are looking for medium power, 500w class, for these bands, checkthem out. I 
have no affiliation with them, just a happy customer. Shippingcan take months 
with the current COVID situation but I've gotten somewithin 
weeks.https://eb104.ru/karta-sayta/directoryTerry Price - W8ZNDirective Systems 
and 
Engineering703-754-3876_______________________________________________VHFcontesting
 mailing 
listVHFcontesting@contesting.comhttp://lists.contesting.com/mailman/listinfo/vhfcontesting
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