sahib
Well-known member
Grundig HVS 1 spring reverb module. old, used but in well working condition.
The plastic locking tabs of one of the coil mechanisms (possibly the input) seem to have been broken but it has no effect on the operation. I have circled this in red in the picture.
Mono unit. Input and output are through 3 way DIN connector. I have made TS jack cables for testing which will be included.
Puts out 28V at a load impedance of 100k or greater.
There is a thread about this unit in GS and it seems that the output transformer is 1:3, and the owner has successfully reversed it for 3:1 step down operation. There is also good amount of information on the net including the schematic.
https://www.gearslutz.com/board/geekslutz-forum/959222-lower-gain-germanium-spring-reverb-recovery-amp-grundig-hvs-1-a.html
The mains operating voltage is selectable at 110, 130, 220, 240VAC.
The unit is currently in Istanbul (where I am at the moment) and will be shipped from here.
GBP 75.00 plus shipping and paypal.
The plastic locking tabs of one of the coil mechanisms (possibly the input) seem to have been broken but it has no effect on the operation. I have circled this in red in the picture.
Mono unit. Input and output are through 3 way DIN connector. I have made TS jack cables for testing which will be included.
Puts out 28V at a load impedance of 100k or greater.
There is a thread about this unit in GS and it seems that the output transformer is 1:3, and the owner has successfully reversed it for 3:1 step down operation. There is also good amount of information on the net including the schematic.
https://www.gearslutz.com/board/geekslutz-forum/959222-lower-gain-germanium-spring-reverb-recovery-amp-grundig-hvs-1-a.html
The mains operating voltage is selectable at 110, 130, 220, 240VAC.
The unit is currently in Istanbul (where I am at the moment) and will be shipped from here.
GBP 75.00 plus shipping and paypal.
