开云体育

N apologize for the interleaving answers and further questions P

Dear Nigel Is it absolutely confirmed there were only 2 transistors in the autopsy? best wishes Paul >>> At first I had some doubts as the posted photos seem to show more than two transformers but

In a message dated 06/05/2007 04:41:30 GMT Daylight Time, crabtreejr@... writes: AFAIK no schematics for the Wellbrook have ever been published. However the harware content which was discussed

wrote: Hello Adam, What went wrong with your old cap? 73, Dave KA3JGG

Dear John ok you are referring to Power Gain = 10 logbase10 (P2/P1) which is defined via the antenna terminology so everything is in terms of power gain ok forgot some of my limited antenna theory LOL

Dear John trying to follow most of your excellent expose via backward analysis however the voltage gain is 20 logbase10 (V2/V1) so for 27 dB we have 10^(27/20)=22.4 actual voltage ratio emitter to

Originally posted on 2007/05/05 at 8:09:04 PM Central Daylight Time One correction made. Hello Nigel, Paul et al AFAIK no schematics for the Wellbrook have ever been published. However the harware

Hello Nigel, Paul et al AFAIK no schematics for the Wellbrook have ever been published. However the harware content which was discussed here, and other information, leads me to the conclusion that the

Dear Nigel forgot that getting old, I remember that now, I remember seeing the pictures but was fuzzy on whether for sure bipolars were used I believe it was not known from the autopsy whether it was

N there are some mosfet designs that have very low noise with moderate gain for instance my H-900 has low noise reasonable gain mosfet design in the end it is a choice of course but the jfets and

Dear Nigel highest gain and lowest noise more likely with jfets ie more likely in the design than bipolar although not necessarily true if one considers say the David Norton noiseless design with

and Well, it is my understanding (take it with a grain of salt, this is theory) that, all other things being equal, higher Q comes when the resistance is lower. To get that, you need bigger wire (more

I had a daydream about this idea coming to me, but since it might be possible cause everyone is smart here, I just wanted to share it. What if its possible that we can connect some sort of frequency

Jim, which is this 1530, the HF-centered one or the one with more MW coverage also? Are you happy with its performance on HF? -Hue Miller

Also, tubesandmore.com and radiodaze.com. But possibly the best source is eBay. Dave wrote:

My 1530 is in regular use from 150 Khz. to Hi band at 155 Mhz. Listen to FM music broadcasting 88-107 and 2 meter repeaters, too, at 145 Mhz. I believe Andy, the manufacturer, has said that up to 100