After making this video, I noticed that sometimes transmitted audio was heavily distorted in "MONITOR" mode. The cause of the trouble was a poor connection of the relay in the final box. After cleaning the contacts, everything returned to normal operation. Theoretically while transmitting antenna terminal of the receiver should be shorted to the ground with the relay, but due to poor contacts, the gain of the receiver was overloaded.
@@Plato1959 sorry but i have a last question. C3 inn the transmitter is it corect that it must be 40uF + 20uF + 20uF . i wil be verry greatfull best 73's de PD5URK
You are correct. C3 contains three capacitors. According to the parts list and schematic, C3 has two 40µF and one 20µF. The 40µ are used for V1 of the MIC AMP and CH-1 of the power supply, and the 20µ is used for V12 of the VOL REG. The capacitor I bought has only two in one capacitor. So the another capacitor is added using the lug terminal. You may be able to see the one if you watch the video carefully. Thanks!
おはようございます メンテナンスをする技術が如何に必要か、が良くわかりました メカニカルフィルターの清掃は初めて拝見しました ご投稿ありがとうございます🤗📻🎊
こんにちは！外観は綺麗でそこそこ動作していても、古い真空管のリグはメンテしないと駄目のようですね😊
After making this video, I noticed that sometimes transmitted audio was heavily distorted in "MONITOR" mode. The cause of the trouble was a poor connection of the relay in the final box. After cleaning the contacts, everything returned to normal operation. Theoretically while transmitting antenna terminal of the receiver should be shorted to the ground with the relay, but due to poor contacts, the gain of the receiver was overloaded.
I do the Same project , but i cant find the the big bleu capacitors _ C3 , C102 and C103 where do you orderd these ??
Thanks for watching! I purchased the blue capacitors from Antique Electronic Supply. Good luck!!
@@Plato1959 Thanks . i have one more question, i cant find the 350wv only 500wv , can i replace it whith this one i fount? Thanks for answering
No problem. Higher rated voltage would be better🤗
@@Plato1959 sorry but i have a last question. C3 inn the transmitter is it corect that it must be 40uF + 20uF + 20uF . i wil be verry greatfull
best 73's de PD5URK
You are correct. C3 contains three capacitors. According to the parts list and schematic, C3 has two 40µF and one 20µF.
The 40µ are used for V1 of the MIC AMP and CH-1 of the power supply, and the 20µ is used for V12 of the VOL REG. The capacitor I bought has only two in one capacitor. So the another capacitor is added using the lug terminal. You may be able to see the one if you watch the video carefully. Thanks!
Very cool! You bring us excelente radio set always. It' s top radios! Congratulations!
Thank you Júlio!