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| Back to Home | Information on Power Supplies Compiled by Robert Meister WA1MIK Web page maintained by Robert Meister WA1MIK |
- Employee Induction Manual. Employee induction manual template Note: Delete this and the next page once you complete tailoring the template for your own organisation. Pyramid schemes or other.
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Their products are being sold by 'Quality Car Audio' and it would seem that they're trying to get rid of a LOT of Pyramid stock, as there are deep discounts on their web page: https://www.qualitycaraudio.com/. Don't even bother going to either site. Go to the one below instead.
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Crack licencias terminal server 2012 r2 iso. I found that product support has been taken over by https://www.pyleusa.com/ and they too are offering deep discounts on Pyramid products.
The https://www.pyleaudio.com/Home.aspx web site seems to be an even better source. I don't know if this is related to PyleUSA.
The Pyramid linear regulated power supplies are very similar to the Astron RS/VS series. They're based on the popular LM723 voltage regulator IC and use multiple high-power series-pass transistors to supply current to the load. Some people say the Pyramids are engineered better. The larger supplies have regulator circuitry that's almost identical to their Astron cousins. Pyramid ammeters measure the voltage drop across a single shunt resistor in series with the positive output, whereas Astron ammeters measure the drop across one of the series-pass transistor emitter balancing resistors. This makes the Pyramid ammeter track the actual load current much more accurately, especially if one of the series-pass transistors fails.
Power Supply Manuals:
The numerical value in the model number indicates the peak intermittent current capability. Some model numbers have 'K' for the suffix while others have 'KX'. The support group told me 'PS-nnK supplies are the older version. The updated version assembled by our new factory is PS-nnKX. The boards and features are different but both models share the same specs.' Astron uses suffix letters to indicate metering, battery back-up, and other options; not so with Pyramid. Some supplies always have meters while others never do. TENNA seems to be a brand name associated with the Phase III products; it may have been bought by Pyramid. Don't be surprised if your unit's parts values and even connections do not agree with the schematic. They made lots of changes and documentation upkeep was apparently not a priority.
Crack licencias terminal server 2012 r2 iso. I found that product support has been taken over by https://www.pyleusa.com/ and they too are offering deep discounts on Pyramid products.
The https://www.pyleaudio.com/Home.aspx web site seems to be an even better source. I don't know if this is related to PyleUSA.
The Pyramid linear regulated power supplies are very similar to the Astron RS/VS series. They're based on the popular LM723 voltage regulator IC and use multiple high-power series-pass transistors to supply current to the load. Some people say the Pyramids are engineered better. The larger supplies have regulator circuitry that's almost identical to their Astron cousins. Pyramid ammeters measure the voltage drop across a single shunt resistor in series with the positive output, whereas Astron ammeters measure the drop across one of the series-pass transistor emitter balancing resistors. This makes the Pyramid ammeter track the actual load current much more accurately, especially if one of the series-pass transistors fails.
Power Supply Manuals:
The numerical value in the model number indicates the peak intermittent current capability. Some model numbers have 'K' for the suffix while others have 'KX'. The support group told me 'PS-nnK supplies are the older version. The updated version assembled by our new factory is PS-nnKX. The boards and features are different but both models share the same specs.' Astron uses suffix letters to indicate metering, battery back-up, and other options; not so with Pyramid. Some supplies always have meters while others never do. TENNA seems to be a brand name associated with the Phase III products; it may have been bought by Pyramid. Don't be surprised if your unit's parts values and even connections do not agree with the schematic. They made lots of changes and documentation upkeep was apparently not a priority.
If anybody has manuals as PDF files (or hard-copy that can be scanned) for models that we do NOT have, please consider sending them in to the page maintainer listed at the top of this page so they can be added.
| PS-3KX 3A Regulated Power Supply 215 kB PDF file Has schematic with parts values. |
| PS-4KX 4A Regulated Power Supply 215 kB PDF file Has schematic with parts values. |
| PS-7KX 7A Regulated Power Supply 215 kB PDF file Has schematic with parts values. |
| Tenna PS-7 7A Regulated Power Supply schematic This supply uses 2N2222 transistors on the circuit board. These are the same as PN2222 but are NOT the same as P2N2222; those have a different lead configuration (CBE). |
| PS-8KX 8A Regulated Power Supply 215 kB PDF file Has schematic with parts values. |
| PS-9KX 9A Regulated Power Supply 275 kB PDF file With cigarette jack and schematic with parts values. |
| PS-12K 12A Regulated Power Supply 338 kB PDF file Has schematic with parts values. |
| PS-14K 14A Regulated Power Supply 356 kB PDF file Has schematic with parts values. |
| PS-15K 15A Regulated Power Supply 347 kB PDF file Has schematic with parts values. |
| Tenna PS-20 20A Regulated Power Supply schematic |
| PS-21K 21A Regulated Power Supply 277 kB PDF file With ammeter, DC fan, and schematic with parts values. |
| PS-25 'Phase III' 25A Regulated Power Supply 44 kB PDF file With ammeter, voltmeter, crowbar, and overload indicator (buzzer). Has schematic but no parts values. |
| PS-26KX 26A Regulated Power Supply 349 kB PDF file With ammeter, voltmeter, crowbar, DC fan, and overload indicator (buzzer and LED). Has schematic with parts values. |
| PS-32LAB 30V 5A Lab Power Supply 260 kB PDF file No schematic. |
| PS-35 'Phase III' 35A schematic only 16 kB PDF file With ammeter, voltmeter, and crowbar. No parts values. See the PS-25 'Phase III' manual above as it's nearly identical. |
| PS-35 'Phase III' 35A Regulated Power Supply 172kB PDF file With ammeter, voltmeter, and crowbar. Has schematic and parts list. Submitted by Ralph WA2PUX. |
| PS-35G 35A Power Supply 420 kB PDF file With ammeter, voltmeter, crowbar, and alarm. Schematic with parts values. Drawn by Carl Hallberg W9CJH. Also has several recommendations for improvement. |
| PS-35G 35A Power Supply 480 kB PDF file Identical to above but includes interconnection plugs and jacks. |
| PS-36K 36A Regulated Power Supply 325 kB PDF file With ammeter, voltmeter, crowbar, and DC fan. Has schematic with parts values. |
| PS-46KX 46A Regulated Power Supply 220 kB PDF file With ammeter, voltmeter, and crowbar. Has schematic with parts values. |
| PS-52K 52A Regulated Power Supply 332 kB PDF file With ammeter, voltmeter, crowbar, and DC fan. Has schematic with parts values. |
| PS-52KX 52A Regulated Power Supply 100 kB PDF file With ammeter, voltmeter, crowbar, and DC fan. Has schematic with parts values. |
| PS-64KX 64A Regulated Power Supply 216 kB PDF file With ammeter, voltmeter, crowbar, and AC fan. Has schematic with parts values. |
| PSV-40 3A Switching Power Supply 225 kB PDF file With cigarette jack. No schematic, which is typical of switching power supplies. |
| PSV-200 20A Switching Power Supply 133 kB PDF file No schematic, which is typical of switching power supplies. |
| PSV-300 30A Switching Power Supply 404 kB PDF file No schematic, which is typical of switching power supplies. |
Pyramid Induction Manual Model
Pyramid Power Supply Feature Matrix:
Key to Columns:
- Sch - Schematic
- PV - Parts Values
- VM - Volt Meter
- AM - Amp Meter
- Fan - Fan (AC or DC if known)
- OLI - Over-Load Indicator (LED and/or Buzzer)
- CLJ - Cigarette Lighter Jack
| Model Number | Sch | PV | VM | AM | Fan | OLI | CLJ |
|---|---|---|---|---|---|---|---|
| PS-3KX 3A | Yes | Yes | |||||
| PS-4KX 4A | Yes | Yes | |||||
| PS-7KX 7A | Yes | Yes | |||||
| PS-8KX 8A | Yes | Yes | |||||
| PS-9KX 9A | Yes | Yes | Yes | ||||
| PS-12K 12A | Yes | Yes | Yes | ||||
| PS-14K 14A | Yes | Yes | Yes | ||||
| PS-15K 15A | Yes | Yes | Yes | Yes | |||
| PS-21K 21A | Yes | Yes | Yes | DC | Yes | ||
| PS-25 'Phase III' 25A | Yes | Yes | Yes | Yes | |||
| PS-26KX 26A | Yes | Yes | Yes | Yes | DC | Yes | |
| PS-32LAB 30V 5A Lab PS | Yes | Yes | Yes | ||||
| PS-35 'Phase III' 35A | Yes | Yes | |||||
| PS-35G 35A | Yes | Yes | Yes | Yes | Yes | ||
| PS-36K 36A | Yes | Yes | Yes | Yes | DC | ||
| PS-46KX 46A | Yes | Yes | Yes | Yes | |||
| PS-52K 52A | Yes | Yes | Yes | Yes | DC | ||
| PS-52KX 52A | Yes | Yes | Yes | Yes | DC | ||
| PS-64KX 64A | Yes | Yes | Yes | Yes | AC | ||
| PSV-40 3A Switching PS | Yes | ||||||
| PSV-200 20A Switching PS | Yes | ||||||
| PSV-300 30A Switching PS | Yes |
Pyramid Induction Manual 2016
Pyramid Power Supply Articles:
| PS-15KX Regulated Power Supply Evaluation by Robert Meister WA1MIK Build quality and load testing. |
| PS-21KX Regulated Power Supply Repair by Rich Post KB8TAD (offsite link) Includes theory and circuit analysis. |
| PS-25 (Phase III) Regulated Power Supply Repair by Rich Post KB8TAD (offsite link) Includes theory and good troubleshooting information. |
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This page initially created 12-Sep-2015 from Other Mfgrs.
Pyramid Induction Manual Pdf
This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.
