Bob the Tech Audio

Bob the Tech found that the issue with this MA9000 was simply a missing connection.

McIntosh MA9000 with One Channel Out

by Bob the Tech October 3, 2020January 23, 2021Comments are Disabled

Bob the Tech Audio services fine audio equipment, vintage and modern, like this brand new McIntosh MA9000 with one channel out.

Bob the Tech Audio has tools and technology to characterize the frequency response of units like this C37

McIntosh C37 Preamplifier Muffled Audio

by Bob the Tech September 20, 2020January 23, 2021Comments are Disabled

Bob the Tech Audio uses modern tools to assess the frequency response of this McIntosh C37 addressing a customer complaint of muffled audio.

Audio Research Service

by Bob the Tech September 19, 2020January 23, 2021Comments are Disabled

Bob the Tech Audio is announcing Audio Research service! We have begun to service Audio Research products, vintage and modern.

Bob the Tech Audio repairs A/V equipment like the McIntosh Laboratories MX121 with intermittent output caused by a misaligned connector.

McIntosh MX121 with Intermittent Audio Output

by Bob the Tech September 10, 2020January 23, 2021Comments are Disabled

Bob the Tech Audio repairs fine A/V equipment such as this McIntosh Laboratories MX121 with intermittent output. Contact Bob the Tech.

Bob the Tech Audio restores and repairs vintage McIntosh equipment like this C29 Preamplifier with no output.

McIntosh C29 Preamplifier with No Output

by Bob the Tech September 4, 2020January 23, 2021Comments are Disabled

Bob the Tech Audio restores and repairs vintage McIntosh equipment like this C29 Preamplifier with no output. Call Bob the Tech for service!

Bob the Tech Audio restores and repairs vintage amplifiers like this McIntosh Laboratories MC2100.

MC2100 Filter Capacitor Repairs

by Bob the Tech September 3, 2020January 23, 2021Comments are Disabled

Bob the Tech Audio restores and repairs vintage amplifiers like this McIntosh Laboratories MC2100. Contact us for your fine audio service needs.

Hewlett-Packard 200AB Audio Signal Generator

by Bob the Tech April 20, 2020January 23, 2021Comments are Disabled

One of my recent projects has been repairing and aligning a Yaesu FT-101ZD HF transceiver. Since I’ve had the radio running I’ve been listening to conversations around the country and the world, which is pretty amazing from an inexpensive Hamfest find and simple wire antenna. I want to fine tune the radio’s performance, and decided …

Hewlett-Packard 606A HF Signal Generator

by Bob the Tech April 14, 2020January 23, 2021Comments are Disabled

This Hewlett-Packard 606A HF Signal Generator is another piece I’ve recently completed repairing and refurbishing in my quest to use the recommended (now vintage) test equipment to align my Yaesu FT-101ZD Transceiver. This unit looks great but it didn’t operate well when I got it on the bench. It is loaded with tubes for the …

Bob the Tech Audio has expertise and tools to diagnose complex microcontroller issues such as McIntosh C2500 Stuck in Standby

McIntosh C2500 Pre-amplifier Stuck in Standby

by Bob the Tech April 14, 2020January 23, 2021Comments are Disabled

Bob the Tech Audio has expertise and tools to diagnose complex microcontroller issues such as this McIntosh C2500 which was stuck in Standby.