Lm13720 — No Sign-up

is available from Texas Instruments and various distributors. If you'd like to dive deeper, I can help you with: for a VCA or VCO. Component matching tips to reduce distortion. Alternatives for modern, low-noise designs. What are you planning to build? lm13700.pdf - Texas Instruments

Keep inputs below 1mA to avoid unhappy transistors. lm13720

) of the amplifier—in simple terms, you can control the gain of the chip using a voltage. Key Features of the LM13700 is available from Texas Instruments and various distributors