[Boatanchors] Fwd: TS-530S Side Tone Frequency

[pomerol at mocha.ocn.ne.jp]

----- 元のメッセージ -----
From: <pomerol at mocha.ocn.ne.jp>
宛先: "Mark K3MSB" <mark.k3msb at gmail.com>
送信済み: 2022年02月09日 午前 5:53
件名: Re: [Boatanchors] TS-530S Side Tone Frequency



Hi Mark,



The TS-530 (TS-830 as well) uses an RC phase shift oscillator.

On the upper left part of the AF Unit schematics, C1/C4/C5 and R4/R5/R6 values determine

the frequency. Changing C*R constant will change the frequency.

Lower C*R for higher frequency and higher C*R for lower frequency.

Refer to https://www.electrical4u.com/rc-phase-shift-oscillator/

 

Hope this helps,

Osamu

 

----- 元のメッセージ -----
From: "Mark K3MSB" <mark.k3msb at gmail.com>
宛先: "Boatanchors List" <boatanchors at mailman.qth.net>
送信済み: 2022年02月08日 午前 12:15
件名: [Boatanchors] TS-530S Side Tone Frequency

Hello

Is there any way to change the side tone frequency (not amplitude) on the
530S?

I downloaded the service manual and didn't find any adjustment.

73 Mark K3MSB
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