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Showing posts from August, 2022

My new amp Yamaha CA-2000

 A legendary amp from the 70s. My new amp, Yamaha CA-2000. Have not tried the speaker out yet (the speakers are on their way here). The seller said the VU meter and broken capacitors were replaced. Unfortunately, one of the legs was broken during shipping (not enough wrapping!). That should be an easy fix though.  The colors do not match...   Also not sure if it is ok to stack my tape deck on the top of the amp. This amp has some great features for taping. I can play back from a particular source while recording from any source (except the tape deck itself). I can also record from deck 1 to 2 or the other way around. The record out select switch is passive, so the amp does not have to be on for the recording. The VU meter can be set to either speaker out or record out. Updates: Replacing the VU meter lamps on my Yamaha CA-2000  Update: there is crosstalk between the inputs channels. I checked the resistance between two inputs, which was about 1megaohms. Resistan...

Some maxell ur in a Japanese supermarket

Some maxell ur in a Japanese supermarket. I bought a pack. I will try them when I have some time. The tape path is browner (lighter in color) than 1990d. Sensitivity is similar 1990 d (it is slightly louder<1dB). The balance between the two channel is slightly different than my D (~1dB). I can turn up the record volume very high without losing much signal (seems to be better than 1990 d in this aspect). However, I have to turn the bias toward negative by a lot for 10khz at -20db (for the same bias position as d, 10khz is like 4db lower) (. Relatively stable high frequency. Weird occasional dropout at 10khz (loses up to 2db after like 1 second) at left channel (similar to what I see in some old tapes). It might be affected by the local humid weather. Sounds good over all.