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At first, Adaptec focused on devices with Parallel SCSI interfaces. Popular host bus adapters included the 154x/15xx ISA family, the 2940 PCI family, and the 29160/-320 family. Their cross-platform ASPI was an early API for accessing and integrating non- disk devices like tape drives , scanners and optical disks .
Adaptec also developed generic SCSI disk and CD-ROM drivers for DOS (ASPICD.SYS and ASPIDISK.SYS). [ 3 ] : 60–61 At least a couple of other programming interfaces for SCSI device drivers competed with ASPI in the early 1990s, including CAM (Common Access Method), developed by Apple; and Layered Device Driver Architecture, developed by Microsoft .
A stack of external SCSI devices displaying various SCSI connectors. Parallel SCSI (SCSI Parallel Interface SPI) allows for attachment of up to 8 devices (8-bit Narrow SCSI) or 16 devices (16-bit Wide SCSI) to the SCSI bus. The SCSI Host controller takes up one slot on the SCSI bus, which limits the number of devices allowed on the bus to 7 or ...
Has 1.4 V/50 mA filament. 1B7-GT – Re-engineered version of types 1C6 and 1C7-G, designed for use in dry-cell battery radios with shortwave bands. Has 1.4 V/100 mA filament; 1G6-G – Dual power triode. "GT" version also available. 1L6 – Pentagrid frequency changer for battery radios with 50 mA filament
Dumble was a guitar amplifier manufacturer in Los Angeles.. A Dumble Overdrive Special . In a one-person operation, Alexander "Howard" Dumble (June 1, 1944 – January 16, 2022) [1] [2] made each amp personally.
SCSI-2 was introduced in 1994 and gave rise to the Fast SCSI and Wide SCSI variants. Fast SCSI doubled the maximum transfer rate to 10 MB/s while retaining the same 50-pin cables, while Wide SCSI doubled the bus width to 16 bits on top of that to reach a maximum transfer rate of 20 MB/s, using new 68-pin cables.
Vacuum tubes used in electric guitar amplifiers. Particularly the ones that played important role in shaping modern image of tube sound, as well as notable former and current manufacturers of those tubes.
In the early 2000s, the company worked with Bruce Egnater of Egnater Amplification to create the MTS (Modular Tube System) series of guitar amplifiers. These involve a single amp head consisting of the power amp and part of a preamp, and slots in the head (one for the RM20 head and combo, two for the RM50 head and combo and RM22 head, and 3 for the RM100 head and RM100C combo, and 12 for the ...