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AMPHF - FOR SALE - Ameritron AL-1200

FOR SALE - Ameritron AL-1200 S/N 12607
Clean & reliable. Instant on for bagging that rare one! Genuine Peter Dahl transformer. The power supply has been modified by adding 2 additional capacitors (a total of 10), see the web link in this ad for that write up in my blog.
The Ameritron AL-1200 has a 3,600v power supply. Its filter capacitor bank of eight, 270mF 450vDC runs right at the limit of its design (8 x 450 = 3600). A common modification is to add two additional capacitors, along with the needed bleeder resistors, to increase the filter bank capacity to 4,500v.
Keep in mind that the transformer still puts out 3,600v, so this modification essentially allows the components in the filter bank to have some overhead capacity. $2,000 plus shipping / delivery as required and negotiated with me.


Listing #1732902 by W5WZ
Submitted on 06/14/25
Web Site: https://www.w5wz.com/2019/09/modify-al-1200-hv-power-supply/
Submitted from IP 198.59.147.57

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