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Looking this over, I saw that these meters have nine electrolytic AC coupling capacitors in the audio path between mic and meter: five at 1 uF, one at 2.2 uF, one at 10 uF, one at 22 uF and one at 220 uF. (FYI, RadioShack is back, online only, and they do have a new digital RadioShack SPL meter.) The Radio Shack SPL Meter schematic. Even so, I managed to dig up a schematic. RadioShack seemed to have gone slowly out of business long before, so new meters, parts and information were difficult, if not impossible, to find.
RADIOSHACK PHONE RECORDER CONTROLLER FULL
So contrary to the popular assumption that all the meters were in-spec and matched, performed perfectly, and were worthy of our full faith and trust (despite being the $30 wonders they were), I eventually realized that there was, in fact, considerable meter-to-meter inconsistency. A re-check found each room measured fine on their respective SPL meters. Sometimes a mixer would move from one room to another and complain about the levels being off. In every case, the morning ritual included setting the room’s overall speaker levels using this. All Photos: Bruce Blackĭuring my career in the film sound business, one thing I found ubiquitous on every mix stage I set foot on was a Realistic/RadioShack analog sound pressure level meter. If the other party has called you, you can state this information at the end of the conversation, as soon as the other party hangs-up the telephone, but before you hang-up.The analog RadioShack SPL meter we all remember.
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As soon as the other party answers, use their name and identify yourself in the conversation ('Hello, Mary this is Joe!'). In most instances, you may improve the likelihood of the tapes being admitted as evidence if you authenticate and identify the tape, as follows:ĭial the first digit of the phone number (to remove the dial-tone), and state your name, the date and time, and the full name and phone number of the party you are calling. (Note: It is illegal to tape party lines or to tape people, other than yourself, who use your private line.) Some judges will admit tapes as evidence only if you have provided a cleanly typed word-for-word transcription of the conversations. Check the wire-tapping statutes for your state, as well as the rules of evidence in your state Rules of Court. If the defendant lies to the court then you may be able to introduce the tapes to impeach their testimony (prove they are lying). As long as one of the parties to a conversation (yourself) knows the line is tapped, the tape recordings can sometimes be admitted to the court as evidence. You don't have to tell anybody that the line is tapped, or that you are recording. It is legal to tap your own private telephone line and to record your own conversations. The illustration below is an approximation of the installation setup. If you leave the tape-recorder set on 'RECORD', it will automatically begin recording whenever any telephone extension on the line is picked-up then it stops when the phone is hung-up. When installed according to the Instructions that come with it, the device will automatically record your calls on most cassette tape recorders that have REMote and MICrophone jacks. The recording control device is about 2-1/2" square by 1" high. A recording device is also available at Electrotex on Forest Lane, Dallas. Radio Shack sells a Multi-Phone Cassette Recorder Controller device for $24.99 (Part Number43-236, Part 24 in their 1996 Catalog).