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[PSUBS-MAILIST] underwater telephone

To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] underwater telephone
From: Ray Keefer <Ray.Keefer@Sun.COM>
Date: Thu, 28 Feb 2002 16:30:25 -0800 (PST)
Content-MD5: TXEwl0kJlPa6YyjU9Pu55w==

Hi,

I wanted a pair (at a minimum) of underwater telephones for the
Convention Regatta day. Captain Kittredge was gracious enough to send
me a schematic of his design.

I have long ago tossed my old data books. Do any of our electronic experts 
have any information on the following parts?

CA3035 or SK3254 Ultra HiGain 3 Amp, Apr. 129dB at 40 kHz
1N295		 Diode
2N3565		 NPN Transister
2N2953		 PNP Transister
2N696		 Transister?
SK3024		 NPN Transister
1N5352B		 Zener Diode
1N4001		 Diode
KHP17011	 Relay

Does anyone know of usable modern equivelents?

Thanks,
Ray

Follow-Ups:
- Re: [PSUBS-MAILIST] underwater telephone
  - From: Michael Holt <mholt@richmond.edu>
- Re: [PSUBS-MAILIST] underwater telephone
  - From: Doc <doc@bionicdolphin.com>

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