I just got around to checking the recording capability after installing a new motor in a new to me RT-707. Here's the symptom list: All pots and switches Deoxited. Pre-recorded tape playback is fine in both directions. Alignment is fine in both directions. (Screws still locked in place from when it was new.) I've cleaned the heads and they appear to be very clean and they show very little wear. The stop spring is clean and properly positioned. The preamp input and throughput are fine. But when recording (with level and bias exercised throughout their travel-level left at maximum at both the input control and the record/oscillator adjustment) I get a low level but very distorted signal that DOES print on the tape. It sounds a little like it'd LIKE to "break on through to the other side". If I turn the level down the signal drops out or nearly so. On my very first 707 (a pawn shop machine that had heavy wear from 1991) I had to buy a new Record/Oscillator board (still available then) because both of the relays were bad/intermittent, but it made a similar noise, sometimes even when record was not engaged. It would spuriously print signal onto tapes I wanted to keep. (Those were tapes that came with the machine. It was well traveled.) (If the input levels were high enough unless I defeated the record enable switches. It's very distorted and much lower in level than the left channel which records perfectly. I thought I was hard to stump, but this Rt. Channel thing has done it. Any assistance would be greatly appreciated.