Posts by yachadm
1339 total posts1232 results
Custom Beogram SP10 Sp12 Sp 14 stylus
in BeoGram · Jan 22, 2024 14:16Very nice idea, but I agree with Chartz - the overhang is far too long, and does not meet the original specs. You have a severe problem with the tracking angle. Shorten the overhang to the original specs, and you may hav…
Styli for Beogram 1000
in BeoGram · Jan 22, 2024 11:33Here's a comparison of the SP10/12/14 (top) and SP6/7/8 etc (middle). The rubber grommet ensures an aesthetic fit on a BG120x/3000 etc tonearm.
Styli for Beogram 1000
in BeoGram · Jan 22, 2024 11:25I was wondering if I would buy a later SP based Beogram, I could use my newly retipped element on another Beogram like the 3000 or 1800 just for example. Yes, absolutely - I have done exactly that for other customers. Th…
Beogram 4002 lifts in middle of record
in BeoGram · Jan 22, 2024 11:12Auric You're spot on. That was exactly the cause of the same problem on one of my repairs about a year ago. Clean the polished rod at the rear, and install new synthetic oil. Change the Servo motor belt, for a new flexib…
Styli for Beogram 1000
in BeoGram · Jan 22, 2024 11:03Another question; are the SP 6/7-8/9-10-12-14 interchangeable between various SP based Beograms? The stylii themselves are Generally, yes. Nude contact line elliptical stylus, and I was wondering if this can be used on a…
Here's a real EXPERT Beogram technician
in BeoGram · Jan 22, 2024 10:59https://www.youtube.com/watch?v=XYZVuyRw9mY Your laughter medicine for the day! Yes, there REALLY are idiots like this who ruin our beautiful turntables. He's probably hungover - He said "I feel like crap", and burps. He…
Beoparts-Shop Beocord Belts
in General Discussion & Questions · Mar 29, 2023 03:40I have been buying belts (and other parts) from Martin Olsen (Dillen) for over 20 years. One BeoCord which I still have, had its belts replaced in 2003. The machine still functions perfectly. I can't forecast what the be…
BeoCord 5000 Typ 4923, Play OK, but FF RW fail
in BeoCord · Mar 28, 2023 13:49Here is a short film of the transport's behavior during FF and RW
Which beogram for beocenter 9300
in BeoGram · Mar 28, 2023 11:59Here's a solution from another enterprising small workshop in Denmark. RIAA amplifiers to fit different BeoGram models: https://claudius-elektronik.dk/designs-og-l-sninger.html
BeoCord 5000 Typ 4923, Play OK, but FF RW fail
in BeoCord · Mar 28, 2023 10:39Greetings to all old friends. It's been many years since I last posted. I have a BC5000 in for repair. Symptoms: Press PLAY - all OK. Press FF - Rotates FF for 1/2 second, STOP 1/2 sec, then RW 1/2 sec, STOP 1/2 sec, RW …
B&O Struer visit
in BeoPeople · Jun 15, 2022 04:46I'd like to know how they polished the BG4000c Aluminum Platter and Keyboard Menahem
How to separate top and bottom of BG4000 platter
in BeoGram · Jun 15, 2022 04:44Mark thanks But my question is How to DO it, not "How NOT to do it". Obviously Direct heat would damage the plastic ribs. Mentioned here that a platter arrived separated after heavy handling in transit. https://beolover.…
Beogram 2200 DIN plug problems.
in BeoGram · Jun 14, 2022 20:37Check this photo . Looking inside the 5-pin DIN Male plug. Center pin - Signal Ground Pin at 2 o'clock - Signal Right Pin at 4 o'clock - Signal Left Menahem Yachad Jerusalem
How to separate top and bottom of BG4000 platter
in BeoGram · Jun 14, 2022 08:31Hi all I want to polish a BG4000 platter - that's the heavy one, with the stroboscope markings on the underside. I can't figure out how to SEPARATE the lightweight shiny top portion, from the heavy dull bottom portion, i…
BM4400 Slight hum and DC Offset on speaker outputs - SOLVED
in Imported Content (Unmapped) · Jan 27, 2022 11:57I got the MPSH54's today. First thing is power to the BM4400, to confirm the Baseline measurements. Speaker Output L/R = +12mVDC TP111 Left = -26.7mV, TP211 Right = -28.4mV Now, I installed the MPSH54's Speaker Output L …
BM4400 Slight hum and DC Offset on speaker outputs - SOLVED
in Imported Content (Unmapped) · Jan 4, 2022 03:41Believe this or not - I cleaned the BM4400 with compressed air, and the DC offset dropped to 12mV on both channels. It was not that dirty to begin with, but coming to the end of the job, I wanted to improve the look as m…
BM4400 Slight hum and DC Offset on speaker outputs - SOLVED
in Imported Content (Unmapped) · Jan 2, 2022 20:11Ha - you made me laugh! I can just picture you reading my post, and then saying to yourself "Hm, I should get up and measure my BM4400, just to make sure!" I saw a note somewhere about replacing R176/276 180Ω with a 220Ω…
BM4400 Slight hum and DC Offset on speaker outputs - SOLVED
in Imported Content (Unmapped) · Jan 2, 2022 19:43Checked (very carefully) all the semis for correct readings under power. Replaced D102/202 Z2.7V – both reading 1.8V, with NOS ITT Z2.7V (reading 2.66V) – I’ll guess that they were both damaged when DC caused the Relay t…
BM4400 Slight hum and DC Offset on speaker outputs - SOLVED
in Imported Content (Unmapped) · Dec 31, 2021 08:47Pinout correct - double-checked before installation! But thanks. More progress: I'm concentrating in the area around the Diff Amp. I replaced TR112/113 BC546B HFe 300 with 2x BC546C with HFe 477. Down to 69mV. So HFe is …
BM4400 Slight hum and DC Offset on speaker outputs - SOLVED
in Imported Content (Unmapped) · Dec 31, 2021 06:40Martin OK, I understand that you're focusing on the MPSH54 as the solution. I checked my parts box, and I have 6 Brand-new NOS MPSH55, which is listed on the same MPSH54 original datasheet from Motorola, showing it as a …