Re: Ebay 282363911577 50ohm? #w8tee #parts

Jack Purdum
 

The dummy load my group (Greater Cincinnati Builders Group) built used mineral oil, which is non-toxic. We tested the DL with a 200W signal for 5 minutes without failure of any components, although the mineral oil could probably do French fries. A construction article on the DL has been accepted by QST, but no projection on the date of publication yet. This shows the top of the DL. The cost is under $20.

Inline image

Jack, W8TEE



From: Mvs Sarma <mvssarma@...>
To: BITX20@groups.io
Sent: Friday, December 15, 2017 11:53 AM
Subject: Re: [BITX20] Ebay 282363911577 50ohm? #parts #w8tee

I had bought 10 lot of dummy loads made at florida i suppose.
 I am planning to use a heatsink mount and housed in a can.
 Later i can even fill that can with transformer  insulating oil, .
regards
 sarma
vu3zmv

regards
Sarma
 

On Fri, Dec 15, 2017 at 7:07 PM, Craig Wadsworth <cwadsworth@...> wrote:
I already have the parts to build one of K4EAA / W8TEE’s dummy load and power-to-voltage converters, but this is tempting as an even lower-cost option.  What do you all think?  Grease and heat sink?  Oil bath?






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