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  • Location
    Washington DC
  • About
    sound recordist Rodrigo Salvatierra
  • Interested in Sound for Picture
    Yes

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  1. Thanks. I’m sure it would help, but what I’m trying to find out is if the microphone is malfunctioning.
  2. Hi, I have a Coles 4104 that sounds good, but the noise of the preamp is very noticeable when I turn it up to the level needed. Ive tried 3 different preamps with similar results. Its the same noise of a preamp that is heard when turning up the gain without a mic loading it. When I connect the microphone, the noise is the exact same, but combined with the microphones signal. Searching online I don't see any mention of this issue. Could anyone who has used this microphone describe their experience? I've used other, much cheaper, ribbon microphones and never noticed this level of noise. Thanks, Rodrigo
  3. Thank you. I had seen similar ones on cameras. This one was given to me by a retired friend.
  4. Hello, anyone know what brand this windshield is? thanks
  5. hi, Would anyone have experience opening this adapter for re wiring? I've taken the screws out and twisted, but wanted to ask, to avoid breaking it. thanks Rodrigo
  6. Hi. I modified this amp a bit to work for guitar. It only has a 6x5 rectifier , a 6aq5a power and a 12ax7 preamp tube. The 4th tube originally in the circuit was for the tape head, so I extracted it and aimed towards a fender champ. I matched it with an old cabinet that had a Jensen 12" alnico and am happy with how smooth it sounds. I am trying to find out what system this amp was part of. Its very similar to the Moviola amps, but this one had the playback head and tape guide wheels on the amp itself, where the moviola had a separate unit for that. The second photo shows it in original form. Any clue I'd appreciate. Thanks
  7. Glad we reached a consensus. Its does sound nice already when I ran it with a synth, and I still have work to do in the preamp section . Also curious about controlling the capstan motor speed, I believe its DC .
  8. Hi, I have a Teac r1000, which is 4 track 2 channels, and have restored the transport to good working condition. My plan is to use it as a delay, so am searching for full track mono heads for it. If I do find compatible heads, would the circuit in the preamp section of the deck for the three heads most likely need modifications, or could I simply use one of the 2 channels to work with the mono head by making the necessary calibration adjustments? Thanks, Rodrigo
  9. If I recall correctly, on that receiver, line output audio is lower than rx900. -10dbv. I got one converted by Zaxcom many years ago, to raise output level and was then able to feed cameras line level signal without issue, when used as a camera hop. Rodrigo
  10. Yes I have. Along with some of the tips also suggested in this thread, the person helping me wrote: Certain transients can cause the crackling/distortion rather easily depending on the source.
  11. That pad, as I understand it, would prevent distortion in the cmc or the preamp input. it isn't the the cmc or the mic preamp that is distorting. This seems to work well for many in a studio setting, but too bulky for a bag after converting to ta3, and they are calibrated to +18dbu, which would not allow me to adjust gain within the 633. http://www.prismsound.com/music_recording/products_subs/overkiller.php no issues on inputs 1-3
  12. What Ive tried now: Schoeps->preamp->Inputs4-6 of 633 =Digital distorted pops What I want to try: Schoeps ->preamp->diode limiter->inputs4-6 of 633
  13. No. I have had similar issues using other preamps, including a mixpre-d, and MP1, both with very effective limiters, which did help but occasionally I would still get distorted pops. I haven't had issues with radio mics, which makes me wonder if the lower frequencies of a boom microphone might cause the distortion. in all cases the audio levels were within safe range. I will build a simple zener diode clamper and see what happens. thanks
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