IEC:

The inputs are the Philips invented IEC connector. Philips decided already in the 60’s to drop it against the DIN, but turned out it is very easy to buy such on martktplaats.nl or ebay (NOS, used,…). So decided to keep it and equip with this my turntable and create adapters, cables for all-purpose. The materials are from the time were fewer (=nothing) things were forbidden, so the quality after 60years is amazing (You can get less good quality as new…) The cable dimensions are a little tricky, but manageable.

I connect IEC connector so, that LEFT is LEFT, RIGHT is RIGHT in the amps I rebuild (this is reversed from factory P.U. input, but matches with the Tuner input… Gosh, they were not consequent, see schematic to understand this more.):

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Note: the Tuner input has a low pass filter at 10kHz, killing the high sounds. But this input has a lower sensitivity, so better signal to noise on the input. Remove the low pass filter and enjoy this input, rather than the tape.

DIN:

What to say, is all on the internet how to connect on this. Input is unfiltered, but amplification is in mV range, so is very sensitive and noisy.

The output is only useful to get out the RIAA corrected signal from the phono. Please check the AG9018 schematic for a factory modification to reduce the outgoing resistance to the half (or even less… as this is just an unnecessary resistor in the signal path when you try to record on tape).

Loudspeaker:

The 800Ohm connector is hard to get, but an XLR connector is easy to modify and use it. Use double insulated cables and take care on insulation at the connector as these are hazardous voltages! (Especial if you earth GND of the amp chassis)

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The 8-16Ohm connector is perfect for smaller banana. I am using it with “Nakamichi” clone banana plugs.

You may upgrade it to WBT or similar.