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Title: 100TH Eimac's Post by: xe1yzy on January 12, 2005, 05:46:52 PM Hi to all...
I found 4 nice 100TH Eimac's NOS , and I wondering if I can use those tubes instead of the 813's in the Tom K1JJ desing, of course after some circuit modification. This tubes have a very nice shape, but I never run 100TH Eimac's before. does anybody have an idea about performance of this tube? Regards Title: 100TH Eimac's Post by: KL7OF on January 14, 2005, 11:23:14 PM Pedro....I am building a Push Pull RF deck using 100ths. I have the Johnson plug in coils and a Big butterfly cap and jack bar with link coupler. plug in coils for the grids.. 2200 volts ..I will modulate it with 813's
Should make 300 watts easy..The tubes have a nice color in operation...I built a Tesla 360 3 yrs ago and I love the 813's//A very easy tube to work with,,,,,,,100th's x 100th's would be very cool too....Good luck....Steve Title: 100TH Eimac's Post by: xe1yzy on January 17, 2005, 11:16:22 AM Thanks Steve...
Yes I see some push-pull desings with 100TH's in some handbooks, I guess they are more a good looking tubes than a performers, but they glow very nice indeed! and make a very cool RF deck. for the moment im searching for the H.V. transformer, I keep you posted in my progress thanks Steve. Pedro Title: 100TH Eimac's Post by: KL7OF on January 18, 2005, 11:42:40 AM The book says.... at 3KV....400 watts per tube ..... so they perform....I'm not going to run mine that hard... I only have 4 and they are used tubes..... Steve AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
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