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---------- Original Message ----------
From: "K5ESS via Groups.Io" <k5ess.nothdurft@...>
To: <[email protected]>
Subject: Re: [qrp-tech] Is there a modern substitute or replacement for the venerable MC1349 and MC1350 monolithic IF amplifiers?
Date: Wed, 5 Jun 2019 12:18:10 -0500

Lansdale indicates Avnet is a distributor but I don't find this part on their site. Anyone know where to purchase small quantities?
Mike
K5ESS

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Richard Harris via Groups.Io
Sent: Wednesday, June 5, 2019 9:18 AM
To: [email protected]
Subject: Re: [qrp-tech] Is there a modern substitute or replacement for the venerable MC1349 and MC1350 monolithic IF amplifiers?

Hi Graham,
The MC1350 is now made by Lansdale Semiconductor as part number ML1350. I assume that Lansdale has acquired the rights to the design from Motorola (or the successor to Motorola Semiconductor). Datasheet at


The Elecraft K3 uses a pair of ML1350 in the IF section.
An alternative voltage-controlled-gain IF amplifier IC is the Texas Instruments TL026.
Richard G3OTK


On Wednesday, 5 June 2019, 14:48:33 BST, Graham <planophore@...> wrote:

Is there a modern substitute or replacement for the venerable MC1349 and MC1350 monolithic IF amplifiers?

cheers, Graham ve3gtc








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