Kleinanzeige Klangfilm / Siemens power amplifier 6S Ela 2786 - output 200 W / 12-15 Ohm

For sale a Siemens PA / Ela power amplifier type 6S Ela 2786 in originally shape and in a normally
working condition, typically for these type of PA amplifiers.
PA sound system used in the 50's/ 60's in US - Military bases in Germany, for film screenings and radio
publicity for the troops in the open field and on military range.
This amplifiers was developed in the 50's year, therefore for an application in Hi-Fi sound systems need
a suitable modification. The frequency response is very good - from 20 Hz to 20 kHz.
I planed primarily a modification but I don't have more workshop capacity. Therefore, I offer this
amplifier to sell for people who have the time and inclination to match them to Hi-Fi systems

This amp was not defect. I checked and adjusted this amp only, and I converted the output transformer
for a low output impedance, which is now about ca. 12, 5 Ohm (applicable in the area from 8-16 Ohm).
The primarily output impedance was 50 Ohm.
The power capacity is 200 Watt.
The all rectifier tubes type AZ50 are NOS and new. The other tubes are used ´but in a 100% condition.
The weight is ca. 35 kg net (ca. 40 kg incl. package)