Er zijn 37 resultaten gevonden

door pserci
24 feb 2019, 12:06
Forum: Updates en Mededelingen
Onderwerp: Nieuwe stijl
Reacties: 289
Weergaves: 7992

Re: Nieuwe stijl

Good Work!! with the colours of MFBfreaks!! Thanks to all
door pserci
14 feb 2019, 17:00
Forum: MFB boxen
Onderwerp: Hulp bij 544 transformatie tweeter
Reacties: 6
Weergaves: 335

Re: Hulp bij 544 transformatie tweeter

Hi Rob, it's strongly advisable to use MKP or MKT 100 V capacitors in this passive crossover section of the MFB544.
Regards, Paolo
door pserci
03 feb 2019, 12:18
Forum: MFB boxen
Onderwerp: 544 beveiliging
Reacties: 6
Weergaves: 334

Re: 544 beveiliging

Lucas. in de 544 zit bij de oudere uitvoering een beveiliging voor zowel de laag als de mid hoog. Later is deze er bij de laag uitgesaneerd en alleen de mid hoog zit er dan nog in. Was bij die van mij ook zo. Maar op de printplaat was de ruimte er nog wel, dus zelf maar weer ingebouwd. Zo heb ik du...
door pserci
01 jan 2019, 18:20
Forum: MFB boxen
Onderwerp: MFB544 modification from /00 to /50 questions
Reacties: 5
Weergaves: 440

Re: MFB544 modification from /00 to /50 questions

Is er echt zoveel verschil tussen de drivers van de /00 en de /50 serie? Yes, there are...and some other intersting little corrections through the evolution of the MFB544 project in electronics. I've also excluded the tone control present below /50 revision that in some way cause sound to be a litt...
door pserci
01 jan 2019, 10:52
Forum: MFB boxen
Onderwerp: MFB544 modification from /00 to /50 questions
Reacties: 5
Weergaves: 440

Re: MFB544 modification from /00 to /50 questions

Hi Salvador, thanks for your reply and i wish a happy 2019!! :D Sure, i've changed also these components, according to service bulletin regarding ad0163 introduction on 544. I also have let c566 on the Mid section with a 3,3 uF (same value as c568). Could this be the reason? In an approximately anal...
door pserci
31 dec 2018, 17:55
Forum: MFB boxen
Onderwerp: MFB544 modification from /00 to /50 questions
Reacties: 5
Weergaves: 440

MFB544 modification from /00 to /50 questions

Hi all and happy new year!! In these holidays, i've completed upgrade and transformation of my MFB544 set from version /00 to version /50. MFB are equipped with ad0211/sq and ad0163 on the medium/high section of the speaker. All service bulletins and driver change advisories was applied on both box....
door pserci
18 sep 2018, 09:16
Forum: Draaitafels
Onderwerp: Ortofon 2m Series fits perfectly AF977 shell dimensions
Reacties: 6
Weergaves: 606

Re: Ortofon 2m Series fits perfectly AF977 shell dimensions

Sure but i think that an Ortofon 2m of high series (bronze, black,) will be widely better than GP412/422. I also own a GP412-II with an elliptical aftermarket stylus (thakker) and is quite equivalent to the 2m RED. But the main fact is the chance to upgrade this great TT with contemporary quality ca...
door pserci
17 sep 2018, 20:30
Forum: Draaitafels
Onderwerp: Ortofon 2m Series fits perfectly AF977 shell dimensions
Reacties: 6
Weergaves: 606

Ortofon 2m Series fits perfectly AF977 shell dimensions

Good news for AF977 owners, or with other Philips turntables, mounting the GP4xx series cart in a fixed holes shell. Vital dimensions of the Ortofon 2M series is exactly the same of the Philips GP4xx series. Verified with specifications and measuring. In my AF977 now sit a beatiful Ortofon 2M red. T...
door pserci
08 apr 2018, 18:47
Forum: Draaitafels
Onderwerp: AF-977 bottom cover realign
Reacties: 44
Weergaves: 3818

Re: AF-977 bottom cover realign

Good Job!!! This new wood bottom cover is even more solid of the original, giving some extra mass to absorb vibrations.
Great idea to share with us. Perhaps, when you have time and the desire, you can paint the border of the same gray/black of the case.
Regards, Paolo
door pserci
29 mar 2018, 21:43
Forum: Draaitafels
Onderwerp: AF-977 bottom cover realign
Reacties: 44
Weergaves: 3818

Re: AF-977 bottom cover realign

IMG_20180328_222845540-800x450.jpg Foto van de huidige stand van de houten bodemplaat. Inderdaad heeft het effect op het uiterlijk van de draaitafel. Met hout krijg je nooit hetzelfde uiterlijk als met plastic vanwege de grotere benodigde dikte etc. De "plint" bestaat uit twee verlijmde MDF-platen ...
door pserci
29 mar 2018, 15:09
Forum: Draaitafels
Onderwerp: AF-977 bottom cover realign
Reacties: 44
Weergaves: 3818

Re: AF-977 bottom cover realign

Problem fixed!! "hairstripper" :D has worked very well. With a little help of my hand :D protected by a glove, i could remodel the bottom and make touch the four rubber feet. Now i'm waiting for the CMOS IC 4737 to finally fix the RPM counter... It was a very pleasure share with you. Thanks again Re...
door pserci
27 mar 2018, 19:19
Forum: Draaitafels
Onderwerp: AF-977 bottom cover realign
Reacties: 44
Weergaves: 3818

Re: AF-977 bottom cover realign

My paintstripper has also two fan speeds only. Summarized: My export market must be Italy ...... instead of Dutch Marktplaats. :P The Phase Locked Loop on the turntables is more a gimmick. All the DC motor-tacho electronic turntables from Philips up from model 22GA212 (1972) have about the same spe...
door pserci
27 mar 2018, 17:30
Forum: Draaitafels
Onderwerp: AF-977 bottom cover realign
Reacties: 44
Weergaves: 3818

Re: AF-977 bottom cover realign

cut cut ... In Holland a malfunction Philips TT from 1970-1983 can be bought up from Eur. 10. For re-working and replacing parts for Eur. 40 you can sell it for Eur. 70-100...cut cut. I pay for this AF977 170 euros, and is the cheapest (because to restore) that i can found in Italy. I know that in ...
door pserci
27 mar 2018, 16:19
Forum: Draaitafels
Onderwerp: AF-977 bottom cover realign
Reacties: 44
Weergaves: 3818

Re: AF-977 bottom cover realign

Obviously, when i try it it was leveled by spacers... My "hot air gun" have two temperature, the lowest at 300°C and the highest at 600. My fear is that the plastic has temperature shrinking properties, that led to uncorreptable condition...but if you have resolved, i think that is not this case. An...
door pserci
27 mar 2018, 16:05
Forum: Draaitafels
Onderwerp: AF-977 bottom cover realign
Reacties: 44
Weergaves: 3818

Re: AF-977 bottom cover realign

HI all, thanks for the replies. I think that "paintstripper" is what i define "hot air gun", right? In my case, deformation is on below plan, all is working and mechanism are free to move, but TT is not plain and some feet don't touch the support base. For all the other aspect, this TT intrigue me. ...