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Its a great thing you do for the hobby and the hobbyist, Thank you.

Yes indeed Sharky does amazing videos and very good information. I have seen all of his but thank you as they are a great source of info for anyone who comes across this post.

Yes this is true as between myself and friends we have done 5 of these to date and not a single one caused any birdies at all. Good luck.

399 i have talked to you twice in the last week and until right now i did not realize that you were the same 399! I have read and seen your postings on here for years but did not connect the dots until now. Thank you for the contact and you sounded great up here in the PNW Seattle Metro area...

Hello All. Myself and a friend are wanting to build a couple of 4 transistor mobile amplifiers based on a old designs that have been floating around the web for many years. However the plans uses Toshibas 2sc2879's but we are going to use HG's. Can anyone tell me what changes do we need to make...

Thank you for the picture upload. I was unable to upload one away from home.

I would say for looks alone the Dak Mark X. I love those large meters.

Thank you! I was wondering what were the sister boards. I appreciate it.

Hello I am looking for a service manual for a Cobra 140gtl and so far have not been able to find one online. Does this radio have a "twin"? I would not thought it would be so hard to find. If you have any ideas where i could find one I am trying to help a local user to be able to troubleshoot...

And for those who are thinking about building one the copper board runs about $80.00 to do it right......But they do work well.

I have played with the idea before using a Peltier cooler but the problem was with moisture was a big issue and problem.

I see that you are new but please notice the date its 4 years old.

The voltages were easy to hit, However the current was hit or miss as the crowbar seemed to not be as stable unless the values were tight. As you are not using more than one at a time you should be ok. We did find that 1% worked better for the crowbar. Good luck let me know if I can be of...

I would have to go back thru my notes but we did use the values that came from the first video.

You WILL want 1% if you are trying to hit the voltage range from the BBi videos. You may have better luck than many of them but the 1 % gave the best stable voltages which was important if you want to parallel them.

They do work well. HOWEVER make sure that you are using very good tight tolerance resistors that has caused a few problems from the get go. My friend and i bought and converted a half dozen back in April and for the most part they have worked well. If you do not seem to get what you think you...

Sorry about that, You never know when you see people selling things like that. However I did try to help you out.

they use 4 x 17 watt tubes,

I suppose its possible, thank you and i will pass it on.

So i spent the afternoon helping a friend put up a NOS Radio Shack 1/2wave antenna, Now it was put together as the instructions were printed. However when it was put up using a MFJ antenna analyzer it was way off. The antenna needed to be shortened, As the each piece of the vertical slip into...