Sveriges Radio/SR/European Console spares. Large SR Module (MLB?) containing 6 x HA70 amplifiers and 7 x Lundahl SR501 input transformers. 1 x HA74 Oscillator module 4x Faders, 3 shallow and 1 deep. 2 have working bands. 10 x HA70 Amplifiers. 5 x SR501 transformers. 4 x output transformers. 1 x blank module. 1 x blank front. 3 x Cadac modules of the same format. 1 x relay driver block with many old transistors. Modules extenders. And assorted spares, knobs, fader metal bands etc etc. This pile of bits weighs a lot! Nearly 17Kg….

Info Mixed job-lot of 1970s Swedish Radio (Sveriges Radio / “SR”) broadcast console spares built around SR’s own discrete op-amp blocks (HA70), with early Lundahl “SR” series transformers (SR501 etc.), plus a handful of faders and some Cadac modules in the same physical Euro-format. Lundahl’s SR-series were developed for Swedish Radio around 1970, and SR501 is a line/isolation transformer still documented by Lundahl today. The HA70 is referenced in Swedish hobbyist forums as SR’s in-house discrete op-amp (“diskreta OP-ampen HA70 som SR designade”).