I replaced the blown lamp with the proper 30mA lamp, purchased from a reliable source. What I found is the indicator extinguishes when the RF power is reduced to almost nothing. Example: Signal meter

Hello FMTuners, I purchased MK's filter amplifier and NanoVNA for measuring 10.7 Mhz ceramic filters. I would like to learn how to put together the 280 and 330 Ohm loss pads. I had the idea of splicin

I recall that back in the day (late 70s?), if you were trying to reduce overall signal strength coming into your tuner or receiver, there was a device that screwed onto the antenna terminals for this

Hello tuner enthusiasts, As the subject line suggests I'm looking for opinions and comparisons of the following shortlist of tuners: Denon TU-800 Luxman T-117 Rotel RT-990BX Yamaha TX-1000 These have

Here's a new thread to discuss this bluetooth / usb (only) FM transmitter. Mentioned here https://groups.io/g/FMtuners/message/93235 I received it last night, and opened it up this AM. Then tried it -

Greeting, I was recently searching for alignment software offerings and stumbled into this interesting German gizmo. https://de.elv.com/elv-hq-stereo-ukw-pruefgenerator-mit-oled-display-sup3-komplettb

I uploaded some Yamaha T-80 manual scans in '07 One need to log in to groups.io if reading messages via email - [edit to include correct link] schematic and alignment - https://groups.io/g/FMtuners/fi

I found a way to modify the RF frequency of my leader fm generator but I have to connect it to a digital tuner to check the RF frequency there is at output. I want to use a simple circuit (rf amplifie

Hi all. I asked this question a while back, but didn't phrase the question I think. Please let me try again. What width do techs here like to set up IF channels (Wide and Narrow) at in terms of kHz wh

https://current.org/2023/01/public-radio-engineers-await-fate-of-major-antenna-maker/

I recently acquired a HH Scott Type 55 Stereo Guide, which is intended to make the stereo light on early Scott stereo tuners work like a modern mpx stereo light (i.e., only coming on where there's a s

Anyone ever heard of this model before? I hadn't before yesterday, popped up on eBay. Would be interested to know people's thoughts. I'm not planning on bidding, just curious. Thanks, Mac2300 (Adam)

For McIntosh MR73, MR74, MR77 Tuners- MPX (Stereo) Bulb #1828 I have a small supply of these bought for a MR77 which are no longer needed. They are NOS bulbs. Price is $1.00/bulb plus shipping. Buy al

I have a pair of Dynaco FM3s in decent working order. One has received the usual tweaks and is my day to day tuner. I'd like to do a total restoration on the second because .. it might be fun. I have

Hi Do someone have the schematic or service manual for this tuner ? Thanks Marc

Inside the January 18th Issue: Want to share an article from this digital edition with someone via email or social media? Use the “Share” button atop each page. Read GLOBAL RADIO Debating the impact o

Hello, I received as a gift a 3001 tuner, in very good shape. My problem is: after turning on, and select a preset, I don,t know how to go back to manual tuning. Now I turn off, and on again to reach

A while back there was an estate sale near me with a Day-Sequerra tuner. I stopped bidding at $600 as they did not demo the unit. It did get me wondering, aside from Day-Sequerra, does anyone still re

Not my Mac, I am posting this for a friend. He has a recently tuned up by Audio Classics MR-78 for sale. The unit includes factory packing, cabinet with panloc, and magnum dynalab antenna. He will not

I need help from the pros identifying two of four ceramic filters from Hitachi FT-5500 Mkii tuner. They are labeled "SME107MZ" found in wide and "D107A" in shared narrow/AM path. My guess is SME107MZ