horizontal rule

What's New?
Sansui in Early Days
Sansui Tube Era Prods
Who is Hashimoto?
Secret of Hashimoto Sound
Hashimoto Products
Technical Aspects
How Hashimoto Sounds
Tube Amp Projects
Finished Amps & Parts
Application Photos
MC Step-Ups
How to Order?
How do they look like?
Contact Information


A-105 Interstage Driver Transformer


The Hashimoto A-105 is a very versatile interstage driver transformer with the possibility of using both the primary and the secondary for series or parallel connection.  The primary impedance of the A-105 (with the primary series connection) is 5K Ohms that is suitable for a triode driver stage with the maximum of 15mA primary current (30mA with the primary parallel connection).  The secondary of the A105 can be used for series, parallel, or Push-Pull connection with 1:1, 1:0.5, or 1:0.5+0.5 primary to secondary ratio, respectably.  When the secondary is connected as the Push-Pull arrangement, the A-105 can be used as a phase splitter.  Because of its wide frequency response range (25 to 35,000 Hz +-2dB - please click the right thumbnail to see the actual chart), the A-105 virtually eliminates the weakness of interstage driver transformers with the incredible mid range sound that you can not simply experience through CR couplings.              


The A-105 measures 52 (W) x 58 (D) x 85 (H) mm, and weighs 0.8Kg (1.8 LB).  The Primary Inductance is 60H (under the primary series connection, Ib=7mA, 5V, 50Hz).





[ Hashimoto Products | Search]

horizontal rule

Last changed: 02/01/15

horizontal rule

Home | What's New? | Sansui in Early Days | Sansui Tube Era Prods | Who is Hashimoto? | Secret of Hashimoto Sound | Hashimoto Products | Technical Aspects | How Hashimoto Sounds | Tube Amp Projects | Finished Amps & Parts | Application Photos | MC Step-Ups | How to Order? | How do they look like? | Links | Search | Contact Information

For problems or questions regarding this web contact support@obsinc.us.
Last updated: 02/01/15.